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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 25 · 40 sums
TalentJR

The method (Flip and multiply): a/b × c/d = (a × c)/(b × d), then simplify. A whole number n is n/1. a/b ÷ c/d = a/b × d/c. Decimal × decimal: multiply as whole numbers; the answer has as many decimal places as both numbers together — 1.2 × 0.3 = 0.36. Decimal ÷ decimal: multiply both by 10 (or 100) first — 2.4 ÷ 0.6 = 24 ÷ 6 = 4.

NameDateTime takenScore ___ / 40
  1. 1.5/6 ÷ 2/5 =
  2. 2.5/9 × 6 =
  3. 3.2/7 × 1/8 =
  4. 4.3/7 × 8/9 =
  5. 5.2/5 × 13 =
  6. 6.9.9 ÷ 0.9 =
  7. 7.4/5 × 5/7 =
  8. 8.1/5 × 3/8 =
  9. 9.73.2 ÷ 8 =
  10. 10.8/9 × 6/7 =
  11. 11.0.9 ÷ 0.3 =
  12. 12.3/7 ÷ 1/2 =
  13. 13.1.8 ÷ 0.6 =
  14. 14.5/6 × 9 =
  15. 15.1/2 ÷ 6/7 =
  16. 16.7/8 ÷ 2/5 =
  17. 17.59.36 ÷ 8 =
  18. 18.1.5 × 0.5 =
  19. 19.4.4 ÷ 0.4 =
  20. 20.1.4 ÷ 0.2 =
  21. 21.2/3 × 3/8 =
  22. 22.3/4 × 5 =
  23. 23.2.4 ÷ 0.3 =
  24. 24.5/6 × 4 =
  25. 25.One roll of ribbon has 4.3 m. How many m do 11 of them make in all? =
  26. 26.4/7 × 1/9 =
  27. 27.13.22 ÷ 2 =
  28. 28.9.4 × 0.9 =
  29. 29.1/4 × 3/4 =
  30. 30.1/4 ÷ 1/6 =
  31. 31.One packet of rice weighs 2.3 kg. How many kg do 7 of them make in all? =
  32. 32.5.5 ÷ 0.5 =
  33. 33.4.4 × 0.2 =
  34. 34.One bag of potatoes weighs 3.5 kg. How many kg do 6 of them make in all? =
  35. 35.1/9 ÷ 1/5 =
  36. 36.30.96 ÷ 4 =
  37. 37.1/2 × 3/8 =
  38. 38.1/2 ÷ 1/2 =
  39. 39.5/7 × 7/8 =
  40. 40.One bag of potatoes weighs 3.3 kg. How many kg do 10 of them make in all? =

Answer key

  1. 25/12
  2. 10/3
  3. 1/28
  4. 8/21
  5. 26/5
  6. 11
  7. 4/7
  8. 3/40
  9. 9.15
  10. 16/21
  11. 3
  12. 6/7
  13. 3
  14. 15/2
  15. 7/12
  16. 35/16
  17. 7.42
  18. 0.75
  19. 11
  20. 7
  21. 1/4
  22. 15/4
  23. 8
  24. 10/3
  25. 47.3
  26. 4/63
  27. 6.61
  28. 8.46
  29. 3/16
  30. 3/2
  31. 16.1
  32. 11
  33. 0.88
  34. 21
  35. 5/9
  36. 7.74
  37. 3/16
  38. 1
  39. 5/8
  40. 33

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