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Adding and subtracting fractions with unlike denominators

Printable adding and subtracting fractions with unlike denominators drills for grade 5. Each page has one line telling the student what to do and 18 or 24 numbered problems, with an answer key numbered the same way, so checking takes a minute.

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New problems every time, a second page if you want one, Letter or A4. Print the sheet, the key or both.

Sample sheet and answer key

Unlike denominators

Adding · 18 problems

NameDate

Add. Write each answer in simplest form.

Score / 18Time

  1. 1.310+13=
  2. 2.18+14=
  3. 3.13+25=
  4. 4.15+13=
  5. 5.512+25=
  6. 6.112+16=
  7. 7.14+23=
  8. 8.38+512=
  9. 9.16+58=
  10. 10.110+112=
  11. 11.18+45=
  12. 12.12+18=
  13. 13.13+310=
  14. 14.110+45=
  15. 15.23+16=
  16. 16.13+110=
  17. 17.110+12=
  18. 18.38+12=
Mathness! Math Worksheets · © 2026 Zubin KhavarianCode D-FUADD-FIRST at mathness.app
Sheet

Unlike denominators

Adding · 18 problems

Answer key

Add. Write each answer in simplest form.

Score 18 / 18Time

  1. 1.310+13=1930
  2. 2.18+14=38
  3. 3.13+25=1115
  4. 4.15+13=815
  5. 5.512+25=4960
  6. 6.112+16=14
  7. 7.14+23=1112
  8. 8.38+512=1924
  9. 9.16+58=1924
  10. 10.110+112=1160
  11. 11.18+45=3740
  12. 12.12+18=58
  13. 13.13+310=1930
  14. 14.110+45=910
  15. 15.23+16=56
  16. 16.13+110=1330
  17. 17.110+12=35
  18. 18.38+12=78
Mathness! Math Worksheets · © 2026 Zubin KhavarianCode D-FUADD-FIRST at mathness.appAnswer key
Answer key

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