Math worksheet focused on reducing fractions and finding equivalent fractions, designed for educational practice.
Worksheet titled "Working with Fractions" featuring problems to reduce fractions and complete equivalent fractions, with spaces for name, date, and score.
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Show Answer Key & Explanations
Step-by-step solution for: Fractions Worksheets Grade 7 - Math Monks
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Show Answer Key & Explanations
Step-by-step solution for: Fractions Worksheets Grade 7 - Math Monks
Let’s work through each problem step by step.
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Part 1: Reduce the fractions
We need to simplify each fraction by dividing both numerator and denominator by their greatest common factor (GCF).
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Problem 1: 44/212
Find GCF of 44 and 212.
Factors of 44: 1, 2, 4, 11, 22, 44
Factors of 212: 1, 2, 4, 53, 106, 212
→ GCF = 4
Divide top and bottom by 4:
44 ÷ 4 = 11
212 ÷ 4 = 53
→ 11/53
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Problem 2: 36/38
GCF of 36 and 38 is 2.
36 ÷ 2 = 18
38 ÷ 2 = 19
→ 18/19
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Problem 3: 56/72
GCF of 56 and 72.
56 = 8×7, 72 = 8×9 → GCF = 8
56 ÷ 8 = 7
72 ÷ 8 = 9
→ 7/9
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Problem 4: 40/116
GCF of 40 and 116.
40 = 4×10, 116 = 4×29 → GCF = 4
40 ÷ 4 = 10
116 ÷ 4 = 29
→ 10/29
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Problem 5: 35/55
GCF of 35 and 55 is 5.
35 ÷ 5 = 7
55 ÷ 5 = 11
→ 7/11
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Problem 6: 58/68
GCF of 58 and 68 is 2.
58 ÷ 2 = 29
68 ÷ 2 = 34
→ 29/34
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Part 2: Complete the equivalent fractions
We find what number was multiplied to get from the first fraction to the others.
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Problem 7: 4/5 = _/50 = _/75
To get from 5 to 50 → multiply by 10 → so numerator: 4 × 10 = 40
To get from 5 to 75 → multiply by 15 → so numerator: 4 × 15 = 60
→ 40/50 = 60/75
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Problem 8: _/37 = _/74 = _/111
Look at denominators: 37, 74, 111
74 ÷ 37 = 2 → so if first denominator is 37, second is ×2, third is ×3
So numerators must also be ×1, ×2, ×3 → let’s assume the base numerator is x.
But we don’t have a starting numerator — wait, look again.
Actually, the problem is written as:
_ / 37 = _ / 74 = _ / 111
This means all three fractions are equal. So if we pick any numerator for 37, say 1, then:
1/37 = 2/74 = 3/111
Check: 2÷2=1, 74÷2=37 → yes; 3÷3=1, 111÷3=37 → yes.
So answer: 1/37 = 2/74 = 3/111
But actually, since it's “complete”, and no starting numerator given, we can use 1 as base.
Alternatively, maybe they want us to fill in blanks assuming the first blank is unknown? But looking at format, it’s likely we’re to find numerators that make them equivalent with those denominators.
Since 74 = 37×2, 111=37×3, then numerators must be n, 2n, 3n.
The simplest is n=1 → 1, 2, 3.
So: 1, 2, 3
But written as fractions: 1/37 = 2/74 = 3/111
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Problem 9: 1/5 = _/25 = _/45
5 → 25: ×5 → numerator: 1×5 = 5
5 → 45: ×9 → numerator: 1×9 = 9
→ 5/25 = 9/45
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Problem 10: 6/9 = _/15 = _/21
First, reduce 6/9 → divide by 3 → 2/3
Now, 2/3 = ?/15 → 3×5=15 → 2×5=10 → 10/15
2/3 = ?/21 → 3×7=21 → 2×7=14 → 14/21
Or directly from 6/9:
6/9 = x/15 → cross multiply: 6×15 = 9x → 90 = 9x → x=10
6/9 = y/21 → 6×21 = 9y → 126 = 9y → y=14
→ 10/15 = 14/21
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Problem 11: 1/4 = _/36 = _/12
4 → 36: ×9 → numerator: 1×9 = 9
4 → 12: ×3 → numerator: 1×3 = 3
→ 9/36 = 3/12
Wait — but 3/12 reduces to 1/4, yes. And 9/36 also reduces to 1/4.
But note: the problem says “complete the equivalent fractions” — so we fill in the blanks.
So: 9/36 = 3/12
But order: 1/4 = 9/36 = 3/12? That’s correct numerically, but usually we write in increasing or decreasing order? Doesn’t matter — mathematically correct.
Actually, 3/12 is simpler than 9/36, but both are equivalent.
We’ll go with: 9, 3
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Problem 12: _/62 = _/31 = _/93
Denominators: 62, 31, 93
Note: 62 = 31×2, 93 = 31×3
So if we let the middle fraction be x/31, then:
First: x/31 = ?/62 → multiply numerator and denominator by 2 → 2x/62
Third: x/31 = ?/93 → multiply by 3 → 3x/93
So to make them equal, we can choose x=1 → then:
2/62 = 1/31 = 3/93
Check: 2/62 = 1/31 ✓, 3/93 = 1/31 ✓
So numerators: 2, 1, 3
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Now, compiling all answers:
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Final Answers:
1. 11/53
2. 18/19
3. 7/9
4. 10/29
5. 7/11
6. 29/34
7. 40, 60
8. 1, 2, 3
9. 5, 9
10. 10, 14
11. 9, 3
12. 2, 1, 3
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Final Answer:
1. $\frac{11}{53}$
2. $\frac{18}{19}$
3. $\frac{7}{9}$
4. $\frac{10}{29}$
5. $\frac{7}{11}$
6. $\frac{29}{34}$
7. $40$, $60$
8. $1$, $2$, $3$
9. $5$, $9$
10. $10$, $14$
11. $9$, $3$
12. $2$, $1$, $3$
---
Part 1: Reduce the fractions
We need to simplify each fraction by dividing both numerator and denominator by their greatest common factor (GCF).
---
Problem 1: 44/212
Find GCF of 44 and 212.
Factors of 44: 1, 2, 4, 11, 22, 44
Factors of 212: 1, 2, 4, 53, 106, 212
→ GCF = 4
Divide top and bottom by 4:
44 ÷ 4 = 11
212 ÷ 4 = 53
→ 11/53
---
Problem 2: 36/38
GCF of 36 and 38 is 2.
36 ÷ 2 = 18
38 ÷ 2 = 19
→ 18/19
---
Problem 3: 56/72
GCF of 56 and 72.
56 = 8×7, 72 = 8×9 → GCF = 8
56 ÷ 8 = 7
72 ÷ 8 = 9
→ 7/9
---
Problem 4: 40/116
GCF of 40 and 116.
40 = 4×10, 116 = 4×29 → GCF = 4
40 ÷ 4 = 10
116 ÷ 4 = 29
→ 10/29
---
Problem 5: 35/55
GCF of 35 and 55 is 5.
35 ÷ 5 = 7
55 ÷ 5 = 11
→ 7/11
---
Problem 6: 58/68
GCF of 58 and 68 is 2.
58 ÷ 2 = 29
68 ÷ 2 = 34
→ 29/34
---
Part 2: Complete the equivalent fractions
We find what number was multiplied to get from the first fraction to the others.
---
Problem 7: 4/5 = _/50 = _/75
To get from 5 to 50 → multiply by 10 → so numerator: 4 × 10 = 40
To get from 5 to 75 → multiply by 15 → so numerator: 4 × 15 = 60
→ 40/50 = 60/75
---
Problem 8: _/37 = _/74 = _/111
Look at denominators: 37, 74, 111
74 ÷ 37 = 2 → so if first denominator is 37, second is ×2, third is ×3
So numerators must also be ×1, ×2, ×3 → let’s assume the base numerator is x.
But we don’t have a starting numerator — wait, look again.
Actually, the problem is written as:
_ / 37 = _ / 74 = _ / 111
This means all three fractions are equal. So if we pick any numerator for 37, say 1, then:
1/37 = 2/74 = 3/111
Check: 2÷2=1, 74÷2=37 → yes; 3÷3=1, 111÷3=37 → yes.
So answer: 1/37 = 2/74 = 3/111
But actually, since it's “complete”, and no starting numerator given, we can use 1 as base.
Alternatively, maybe they want us to fill in blanks assuming the first blank is unknown? But looking at format, it’s likely we’re to find numerators that make them equivalent with those denominators.
Since 74 = 37×2, 111=37×3, then numerators must be n, 2n, 3n.
The simplest is n=1 → 1, 2, 3.
So: 1, 2, 3
But written as fractions: 1/37 = 2/74 = 3/111
---
Problem 9: 1/5 = _/25 = _/45
5 → 25: ×5 → numerator: 1×5 = 5
5 → 45: ×9 → numerator: 1×9 = 9
→ 5/25 = 9/45
---
Problem 10: 6/9 = _/15 = _/21
First, reduce 6/9 → divide by 3 → 2/3
Now, 2/3 = ?/15 → 3×5=15 → 2×5=10 → 10/15
2/3 = ?/21 → 3×7=21 → 2×7=14 → 14/21
Or directly from 6/9:
6/9 = x/15 → cross multiply: 6×15 = 9x → 90 = 9x → x=10
6/9 = y/21 → 6×21 = 9y → 126 = 9y → y=14
→ 10/15 = 14/21
---
Problem 11: 1/4 = _/36 = _/12
4 → 36: ×9 → numerator: 1×9 = 9
4 → 12: ×3 → numerator: 1×3 = 3
→ 9/36 = 3/12
Wait — but 3/12 reduces to 1/4, yes. And 9/36 also reduces to 1/4.
But note: the problem says “complete the equivalent fractions” — so we fill in the blanks.
So: 9/36 = 3/12
But order: 1/4 = 9/36 = 3/12? That’s correct numerically, but usually we write in increasing or decreasing order? Doesn’t matter — mathematically correct.
Actually, 3/12 is simpler than 9/36, but both are equivalent.
We’ll go with: 9, 3
---
Problem 12: _/62 = _/31 = _/93
Denominators: 62, 31, 93
Note: 62 = 31×2, 93 = 31×3
So if we let the middle fraction be x/31, then:
First: x/31 = ?/62 → multiply numerator and denominator by 2 → 2x/62
Third: x/31 = ?/93 → multiply by 3 → 3x/93
So to make them equal, we can choose x=1 → then:
2/62 = 1/31 = 3/93
Check: 2/62 = 1/31 ✓, 3/93 = 1/31 ✓
So numerators: 2, 1, 3
---
Now, compiling all answers:
---
Final Answers:
1. 11/53
2. 18/19
3. 7/9
4. 10/29
5. 7/11
6. 29/34
7. 40, 60
8. 1, 2, 3
9. 5, 9
10. 10, 14
11. 9, 3
12. 2, 1, 3
---
Final Answer:
1. $\frac{11}{53}$
2. $\frac{18}{19}$
3. $\frac{7}{9}$
4. $\frac{10}{29}$
5. $\frac{7}{11}$
6. $\frac{29}{34}$
7. $40$, $60$
8. $1$, $2$, $3$
9. $5$, $9$
10. $10$, $14$
11. $9$, $3$
12. $2$, $1$, $3$
Parent Tip: Review the logic above to help your child master the concept of 7th grade math worksheet fractions.