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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 514 · 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. 1.3/5 × 14 =
  2. 2.1/6 × 1/2 =
  3. 3.1/4 × 5/8 =
  4. 4.5/6 × 1/3 =
  5. 5.5.9 × 0.6 =
  6. 6.1/2 ÷ 1/4 =
  7. 7.2.4 ÷ 0.4 =
  8. 8.1/3 ÷ 8/9 =
  9. 9.18.94 ÷ 2 =
  10. 10.3.6 ÷ 0.3 =
  11. 11.One roll of ribbon has 3.6 m. How many m do 12 of them make in all? =
  12. 12.1/4 ÷ 2/3 =
  13. 13.One jug of milk holds 3.6 L. How many L do 7 of them make in all? =
  14. 14.7/8 × 13 =
  15. 15.15.5 ÷ 2 =
  16. 16.1.2 ÷ 0.6 =
  17. 17.7.2 ÷ 0.6 =
  18. 18.3.6 ÷ 0.4 =
  19. 19.2/9 × 4 =
  20. 20.41.35 ÷ 5 =
  21. 21.3.5 ÷ 0.7 =
  22. 22.4/7 × 11 =
  23. 23.1/6 × 6/7 =
  24. 24.2.2 ÷ 0.2 =
  25. 25.5.4 ÷ 0.6 =
  26. 26.2/3 × 1/9 =
  27. 27.4 ÷ 0.4 =
  28. 28.One packet of rice weighs 1.3 kg. How many kg do 10 of them make in all? =
  29. 29.1/4 × 2 =
  30. 30.42.72 ÷ 8 =
  31. 31.7.75 ÷ 5 =
  32. 32.4/7 × 8 =
  33. 33.7.46 ÷ 2 =
  34. 34.0.6 ÷ 0.2 =
  35. 35.2/3 × 7/8 =
  36. 36.9.4 × 0.4 =
  37. 37.1/5 × 6 =
  38. 38.4/9 × 4/5 =
  39. 39.9.9 × 0.6 =
  40. 40.4/7 × 6 =

Answer key

  1. 42/5
  2. 1/12
  3. 5/32
  4. 5/18
  5. 3.54
  6. 2
  7. 6
  8. 3/8
  9. 9.47
  10. 12
  11. 43.2
  12. 3/8
  13. 25.2
  14. 91/8
  15. 7.75
  16. 2
  17. 12
  18. 9
  19. 8/9
  20. 8.27
  21. 5
  22. 44/7
  23. 1/7
  24. 11
  25. 9
  26. 2/27
  27. 10
  28. 13
  29. 1/2
  30. 5.34
  31. 1.55
  32. 32/7
  33. 3.73
  34. 3
  35. 7/12
  36. 3.76
  37. 6/5
  38. 16/45
  39. 5.94
  40. 24/7

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