Let’s solve each equivalent fraction problem step by step.
We’re looking for the missing number that makes two fractions equal. To do this, we can use cross-multiplication or find what you multiply the denominator (or numerator) by to get the new one — then apply the same multiplication to the other part.
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1) 4/5 = 8/?
→ 4 × ? = 8 → ? = 2
→ So 5 × 2 =
10
2) 3/13 = ?/26
→ 13 × 2 = 26 → so 3 × 2 =
6
3) 5/21 = ?/42
→ 21 × 2 = 42 → so 5 × 2 =
10
4) 5/7 = ?/21
→ 7 × 3 = 21 → so 5 × 3 =
15
5) 7/15 = 14/?
→ 7 × 2 = 14 → so 15 × 2 =
30
6) 6/13 = ?/39
→ 13 × 3 = 39 → so 6 × 3 =
18
7) ?/9 = 6/27
→ 9 × 3 = 27 → so ? × 3 = 6 → ? =
2
8) 6/19 = ?/57
→ 19 × 3 = 57 → so 6 × 3 =
18
9) ?/17 = 15/51
→ 17 × 3 = 51 → so ? × 3 = 15 → ? =
5
10) 3/10 = ?/30
→ 10 × 3 = 30 → so 3 × 3 =
9
11) 7/12 = 28/?
→ 7 × 4 = 28 → so 12 × 4 =
48
12) 8/15 = ?/45
→ 15 × 3 = 45 → so 8 × 3 =
24
13) 7/? = 21/45
→ 7 × 3 = 21 → so ? × 3 = 45 → ? =
15
14) ?/11 = 16/44
→ 11 × 4 = 44 → so ? × 4 = 16 → ? =
4
15) ?/15 = 22/30
→ 15 × 2 = 30 → so ? × 2 = 22 → ? =
11
16) 6/11 = ?/44
→ 11 × 4 = 44 → so 6 × 4 =
24
17) ?/13 = 8/52
→ 13 × 4 = 52 → so ? × 4 = 8 → ? =
2
18) 5/14 = 15/?
→ 5 × 3 = 15 → so 14 × 3 =
42
19) 2/15 = 6/?
→ 2 × 3 = 6 → so 15 × 3 =
45
20) ?/17 = 22/34
→ 17 × 2 = 34 → so ? × 2 = 22 → ? =
11
21) ?/13 = 12/26
→ 13 × 2 = 26 → so ? × 2 = 12 → ? =
6
22) 5/12 = ?/36
→ 12 × 3 = 36 → so 5 × 3 =
15
23) 1/9 = ?/27
→ 9 × 3 = 27 → so 1 × 3 =
3
24) 7/12 = 21/?
→ 7 × 3 = 21 → so 12 × 3 =
36
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Final Answer:
1) 10
2) 6
3) 10
4) 15
5) 30
6) 18
7) 2
8) 18
9) 5
10) 9
11) 48
12) 24
13) 15
14) 4
15) 11
16) 24
17) 2
18) 42
19) 45
20) 11
21) 6
22) 15
23) 3
24) 36
Parent Tip: Review the logic above to help your child master the concept of worksheet on equivalent fractions.
