MathIQO worksheet
Add and subtract fractions with unlike denominators · Grade 7 · B2.5
Name: ______________________
Date: ______________________
- 1
Add: 12 + 35. Give your answer as a fraction.
Warm-upAnswer:
- 2
Add: 12 + 23. Give your answer as a fraction.
Warm-upAnswer:
- 3
Add: 14 + 15. Give your answer as a fraction.
Warm-upAnswer:
- 4
Subtract: 12 − 13. Give your answer as a fraction.
On levelAnswer:
- 5
Subtract: 45 − 12. Give your answer as a fraction.
On levelAnswer:
- 6
Subtract: 47 − 13. Give your answer as a fraction.
On levelAnswer:
- 7
Add: 18 + 19. Give your answer as a fraction.
ChallengeAnswer:
- 8
Add: 18 + 69. Give your answer as a fraction.
ChallengeAnswer:
- 9
Add: 25 + 28. Give your answer as a fraction.
ChallengeAnswer:
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Worksheet code: eyJzIjoibnVtYmVyLWZyYWN0aW9uLWFkZC1zdWJ0cmFjdC11bmxpa2UiLCJkIjpbMjkwMDE4MjcyLDk3NDc2MDMyMyw4MTQyNTM4NzksNDUzMDAzNTU0LDkwMzEyMDI5LDMwNjI2MTI3MiwxMzg2Njc4OTIyLDEzNTk5NDUxMywxOTI0NDY5NTgzXSwidiI6MX0.2da600fded86
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Answer key · Add and subtract fractions with unlike denominators
- 1.11/10 — Common denominator 10: 510 + 610 = 1110.
- 2.7/6 — Common denominator 6: 36 + 46 = 76.
- 3.9/20 — Common denominator 20: 520 + 420 = 920.
- 4.1/6 — Common denominator 6: 36 − 26 = 16.
- 5.3/10 — Common denominator 10: 810 − 510 = 310.
- 6.5/21 — Common denominator 21: 1221 − 721 = 521.
- 7.17/72 — Common denominator 72: 972 + 872 = 1772.
- 8.19/24 — Common denominator 72: 972 + 4872 = 5772.
- 9.13/20 — Common denominator 40: 1640 + 1040 = 2640.