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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 305 · 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. 1.9.1 × 0.4 =
  2. 2.1/5 ÷ 1/8 =
  3. 3.One roll of ribbon has 8.7 m. How many m do 3 of them make in all? =
  4. 4.1/3 × 4/7 =
  5. 5.4/5 × 5/6 =
  6. 6.3/5 ÷ 2/3 =
  7. 7.5/6 × 9 =
  8. 8.6.2 × 0.2 =
  9. 9.2/5 ÷ 2/5 =
  10. 10.1/3 × 5 =
  11. 11.3 ÷ 0.5 =
  12. 12.4/9 × 1/4 =
  13. 13.8.3 × 0.9 =
  14. 14.3 ÷ 0.6 =
  15. 15.1/8 ÷ 5/7 =
  16. 16.0.6 ÷ 0.3 =
  17. 17.3/4 × 5/8 =
  18. 18.5/9 ÷ 7/8 =
  19. 19.2/9 × 11 =
  20. 20.1/9 ÷ 1/8 =
  21. 21.1/5 ÷ 4/9 =
  22. 22.0.6 × 0.6 =
  23. 23.7/9 × 3/7 =
  24. 24.7/9 ÷ 2/5 =
  25. 25.9.6 × 0.7 =
  26. 26.1/3 × 4 =
  27. 27.1/3 × 2/3 =
  28. 28.19.9 ÷ 5 =
  29. 29.4/5 × 1/4 =
  30. 30.1/5 × 14 =
  31. 31.One bag of potatoes weighs 3.2 kg. How many kg do 5 of them make in all? =
  32. 32.7/8 ÷ 2/3 =
  33. 33.One bag of potatoes weighs 2.5 kg. How many kg do 8 of them make in all? =
  34. 34.2 ÷ 0.2 =
  35. 35.9.9 ÷ 0.9 =
  36. 36.4.64 ÷ 4 =
  37. 37.One jug of milk holds 5.2 L. How many L do 12 of them make in all? =
  38. 38.1/4 × 1/9 =
  39. 39.One bag of potatoes weighs 6.7 kg. How many kg do 10 of them make in all? =
  40. 40.2/3 × 1/5 =

Answer key

  1. 3.64
  2. 8/5
  3. 26.1
  4. 4/21
  5. 2/3
  6. 9/10
  7. 15/2
  8. 1.24
  9. 1
  10. 5/3
  11. 6
  12. 1/9
  13. 7.47
  14. 5
  15. 7/40
  16. 2
  17. 15/32
  18. 40/63
  19. 22/9
  20. 8/9
  21. 9/20
  22. 0.36
  23. 1/3
  24. 35/18
  25. 6.72
  26. 4/3
  27. 2/9
  28. 3.98
  29. 1/5
  30. 14/5
  31. 16
  32. 21/16
  33. 20
  34. 10
  35. 11
  36. 1.16
  37. 62.4
  38. 1/36
  39. 67
  40. 2/15

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