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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 370 · 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. 1.5/7 × 1/9 =
  2. 2.1/8 × 9 =
  3. 3.3.2 ÷ 5 =
  4. 4.4/5 × 3/5 =
  5. 5.8.8 ÷ 0.8 =
  6. 6.2/3 ÷ 1/3 =
  7. 7.2/7 × 3 =
  8. 8.1/2 × 8 =
  9. 9.7/9 × 7/8 =
  10. 10.3/8 ÷ 5/6 =
  11. 11.1/2 × 9 =
  12. 12.4/7 × 13 =
  13. 13.4/9 × 12 =
  14. 14.5.5 × 0.6 =
  15. 15.0.42 ÷ 2 =
  16. 16.7/8 × 7 =
  17. 17.1/8 × 5 =
  18. 18.22.32 ÷ 4 =
  19. 19.5/7 × 5/8 =
  20. 20.8.1 ÷ 0.9 =
  21. 21.19.28 ÷ 4 =
  22. 22.3 ÷ 0.5 =
  23. 23.8.2 × 0.2 =
  24. 24.6.5 ÷ 5 =
  25. 25.1/5 × 14 =
  26. 26.0.6 ÷ 5 =
  27. 27.1/8 ÷ 1/7 =
  28. 28.2.1 ÷ 0.3 =
  29. 29.21.12 ÷ 8 =
  30. 30.5/9 × 6 =
  31. 31.1/9 × 5 =
  32. 32.One packet of rice weighs 2 kg. How many kg do 3 of them make in all? =
  33. 33.8/9 ÷ 3/8 =
  34. 34.3/4 × 7/9 =
  35. 35.1/2 × 3 =
  36. 36.13.95 ÷ 5 =
  37. 37.4/9 × 1/9 =
  38. 38.1/8 × 3/5 =
  39. 39.1/9 × 4 =
  40. 40.4.4 × 0.4 =

Answer key

  1. 5/63
  2. 9/8
  3. 0.64
  4. 12/25
  5. 11
  6. 2
  7. 6/7
  8. 4
  9. 49/72
  10. 9/20
  11. 9/2
  12. 52/7
  13. 16/3
  14. 3.3
  15. 0.21
  16. 49/8
  17. 5/8
  18. 5.58
  19. 25/56
  20. 9
  21. 4.82
  22. 6
  23. 1.64
  24. 1.3
  25. 14/5
  26. 0.12
  27. 7/8
  28. 7
  29. 2.64
  30. 10/3
  31. 5/9
  32. 6
  33. 64/27
  34. 7/12
  35. 3/2
  36. 2.79
  37. 4/81
  38. 3/40
  39. 4/9
  40. 1.76

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