MathIQO worksheet
Add and subtract fractions with unlike denominators · Grade 7 · B2.5
Name: ______________________
Date: ______________________
- 1
Add: 12 + 15. Give your answer as a fraction.
Warm-upAnswer:
- 2
Add: 12 + 25. Give your answer as a fraction.
Warm-upAnswer:
- 3
Add: 14 + 35. Give your answer as a fraction.
Warm-upAnswer:
- 4
Subtract: 23 − 35. Give your answer as a fraction.
On levelAnswer:
- 5
Subtract: 23 − 35. Give your answer as a fraction.
On levelAnswer:
- 6
Subtract: 24 − 13. Give your answer as a fraction.
On levelAnswer:
- 7
Add: 57 + 68. Give your answer as a fraction.
ChallengeAnswer:
- 8
Add: 27 + 59. Give your answer as a fraction.
ChallengeAnswer:
- 9
Add: 45 + 46. Give your answer as a fraction.
ChallengeAnswer:
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Worksheet code: eyJzIjoibnVtYmVyLWZyYWN0aW9uLWFkZC1zdWJ0cmFjdC11bmxpa2UiLCJkIjpbMjY1NTQ2NDE1LDE0MDA1NzY5MzgsMTg0OTUyNTYwNCwxNTI4ODkzNzE1LDE3MTEwMjU4NTgsODc0MjI1OTQxLDE4MTIxNTA2NTAsNTQzOTI5MDcyLDk2NjEwMjc2M10sInYiOjF9.065ccddf2ea5
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Answer key · Add and subtract fractions with unlike denominators
- 1.7/10 — Common denominator 10: 510 + 210 = 710.
- 2.9/10 — Common denominator 10: 510 + 410 = 910.
- 3.17/20 — Common denominator 20: 520 + 1220 = 1720.
- 4.1/15 — Common denominator 15: 1015 − 915 = 115.
- 5.1/15 — Common denominator 15: 1015 − 915 = 115.
- 6.1/6 — Common denominator 12: 612 − 412 = 212.
- 7.41/28 — Common denominator 56: 4056 + 4256 = 8256.
- 8.53/63 — Common denominator 63: 1863 + 3563 = 5363.
- 9.22/15 — Common denominator 30: 2430 + 2030 = 4430.