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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 137 · 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. 1.5/9 × 4/7 =
  2. 2.32.32 ÷ 8 =
  3. 3.5/8 ÷ 5/7 =
  4. 4.2.5 ÷ 0.5 =
  5. 5.4/5 ÷ 1/8 =
  6. 6.7.2 × 0.5 =
  7. 7.2/5 × 5/9 =
  8. 8.8.7 × 0.2 =
  9. 9.3.2 ÷ 0.8 =
  10. 10.6.9 × 0.3 =
  11. 11.1.4 ÷ 0.2 =
  12. 12.29.4 ÷ 5 =
  13. 13.One bag of potatoes weighs 5.9 kg. How many kg do 6 of them make in all? =
  14. 14.8/9 ÷ 2/5 =
  15. 15.One roll of ribbon has 4 m. How many m do 10 of them make in all? =
  16. 16.One jug of milk holds 8.4 L. How many L do 8 of them make in all? =
  17. 17.3/7 ÷ 1/4 =
  18. 18.0.4 × 0.6 =
  19. 19.1/4 ÷ 1/4 =
  20. 20.2.7 ÷ 0.3 =
  21. 21.7.2 × 0.3 =
  22. 22.5/7 ÷ 2/3 =
  23. 23.0.1 × 0.7 =
  24. 24.6 ÷ 0.5 =
  25. 25.8.9 ÷ 2 =
  26. 26.One bag of potatoes weighs 3.6 kg. How many kg do 11 of them make in all? =
  27. 27.One bag of potatoes weighs 2.8 kg. How many kg do 12 of them make in all? =
  28. 28.66.72 ÷ 8 =
  29. 29.5.1 × 0.3 =
  30. 30.8/9 × 5/6 =
  31. 31.33.76 ÷ 8 =
  32. 32.2 ÷ 0.5 =
  33. 33.8.3 × 0.8 =
  34. 34.2.4 ÷ 0.6 =
  35. 35.1.6 × 0.6 =
  36. 36.One bag of potatoes weighs 4 kg. How many kg do 10 of them make in all? =
  37. 37.2/5 × 12 =
  38. 38.3/8 ÷ 2/7 =
  39. 39.4.5 ÷ 0.9 =
  40. 40.3/5 ÷ 2/3 =

Answer key

  1. 20/63
  2. 4.04
  3. 7/8
  4. 5
  5. 32/5
  6. 3.6
  7. 2/9
  8. 1.74
  9. 4
  10. 2.07
  11. 7
  12. 5.88
  13. 35.4
  14. 20/9
  15. 40
  16. 67.2
  17. 12/7
  18. 0.24
  19. 1
  20. 9
  21. 2.16
  22. 15/14
  23. 0.07
  24. 12
  25. 4.45
  26. 39.6
  27. 33.6
  28. 8.34
  29. 1.53
  30. 20/27
  31. 4.22
  32. 4
  33. 6.64
  34. 4
  35. 0.96
  36. 40
  37. 24/5
  38. 21/16
  39. 5
  40. 9/10

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