Let’s solve each problem one by one. We’ll add the fractions step by step, making sure they have the same bottom number (denominator) before adding.
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Problem 1:
Wendy built 1/3 of a snowman and Bill built 1/3 of a snowman. How much did they build together?
→ Both fractions already have the same denominator: 3.
→ Add the top numbers: 1 + 1 = 2
→ Keep the bottom number: 3
→ So, 1/3 + 1/3 =
2/3
They built
2/3 of a snowman together.
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Problem 2:
Frank ate 1/8 of the pie and Fred ate 5/8 of the pie. How much did they eat in all?
→ Same denominator: 8
→ Add tops: 1 + 5 = 6
→ Keep bottom: 8
→ So, 1/8 + 5/8 =
6/8
We can simplify 6/8 by dividing top and bottom by 2 →
3/4
They ate
3/4 of the pie in all.
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Problem 3:
Paul colored 3/7 in the morning and 2/7 in the afternoon. How much did he color in all?
→ Same denominator: 7
→ Add tops: 3 + 2 = 5
→ Keep bottom: 7
→ So, 3/7 + 2/7 =
5/7
He colored
5/7 of the snowflake in all.
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Problem 4:
Pauline knitted 3/10 on Monday and 3/10 on Tuesday. How much has she knitted so far?
→ Same denominator: 10
→ Add tops: 3 + 3 = 6
→ Keep bottom: 10
→ So, 3/10 + 3/10 =
6/10
Simplify 6/10 by dividing top and bottom by 2 →
3/5
She has knitted
3/5 of the sweater so far.
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Problem 5:
One lake is 5/12 inches thick, another is 5/12 inches thick. What is the sum?
→ Same denominator: 12
→ Add tops: 5 + 5 = 10
→ Keep bottom: 12
→ So, 5/12 + 5/12 =
10/12
Simplify 10/12 by dividing top and bottom by 2 →
5/6
The total thickness is
5/6 inches.
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Final Answer:
1. 2/3
2. 3/4
3. 5/7
4. 3/5
5. 5/6
Parent Tip: Review the logic above to help your child master the concept of 3rd grade fraction answers 1 12.
