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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 162 · 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. 1.5/8 ÷ 5/9 =
  2. 2.3/5 × 9 =
  3. 3.1/5 ÷ 5/6 =
  4. 4.1/9 × 12 =
  5. 5.1.2 ÷ 0.2 =
  6. 6.One bottle of oil holds 9.6 L. How many L do 7 of them make in all? =
  7. 7.One packet of rice weighs 8.5 kg. How many kg do 7 of them make in all? =
  8. 8.One bottle of oil holds 8.1 L. How many L do 2 of them make in all? =
  9. 9.34.28 ÷ 4 =
  10. 10.3/8 × 6 =
  11. 11.4/9 × 3 =
  12. 12.6.3 ÷ 0.7 =
  13. 13.1/2 ÷ 1/4 =
  14. 14.3.7 × 0.7 =
  15. 15.4.16 ÷ 8 =
  16. 16.4/5 ÷ 3/4 =
  17. 17.0.3 × 0.9 =
  18. 18.One jug of milk holds 1.5 L. How many L do 11 of them make in all? =
  19. 19.One bottle of oil holds 7.5 L. How many L do 4 of them make in all? =
  20. 20.1/8 ÷ 2/7 =
  21. 21.1/5 × 3/7 =
  22. 22.38.64 ÷ 4 =
  23. 23.7 ÷ 0.7 =
  24. 24.5/7 × 15 =
  25. 25.9.14 ÷ 2 =
  26. 26.1/4 × 6/7 =
  27. 27.9.5 × 0.3 =
  28. 28.9.88 ÷ 4 =
  29. 29.1/4 × 3/5 =
  30. 30.5/7 × 1/9 =
  31. 31.3.4 × 0.3 =
  32. 32.7/9 × 3/8 =
  33. 33.1.6 × 0.4 =
  34. 34.2/9 × 12 =
  35. 35.1.4 ÷ 0.2 =
  36. 36.3/5 ÷ 1/6 =
  37. 37.1.8 ÷ 0.3 =
  38. 38.7.2 ÷ 0.9 =
  39. 39.One jug of milk holds 3.3 L. How many L do 12 of them make in all? =
  40. 40.1/8 × 3/7 =

Answer key

  1. 9/8
  2. 27/5
  3. 6/25
  4. 4/3
  5. 6
  6. 67.2
  7. 59.5
  8. 16.2
  9. 8.57
  10. 9/4
  11. 4/3
  12. 9
  13. 2
  14. 2.59
  15. 0.52
  16. 16/15
  17. 0.27
  18. 16.5
  19. 30
  20. 7/16
  21. 3/35
  22. 9.66
  23. 10
  24. 75/7
  25. 4.57
  26. 3/14
  27. 2.85
  28. 2.47
  29. 3/20
  30. 5/63
  31. 1.02
  32. 7/24
  33. 0.64
  34. 8/3
  35. 7
  36. 18/5
  37. 6
  38. 8
  39. 39.6
  40. 3/56

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