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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 127 · 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. 1.0.3 × 0.8 =
  2. 2.7.2 × 0.9 =
  3. 3.2/5 ÷ 5/7 =
  4. 4.2/3 × 8/9 =
  5. 5.0.52 ÷ 2 =
  6. 6.63.44 ÷ 8 =
  7. 7.3/5 × 5 =
  8. 8.1/2 ÷ 1/2 =
  9. 9.5/8 ÷ 7/9 =
  10. 10.4/9 ÷ 1/3 =
  11. 11.5/9 ÷ 3/8 =
  12. 12.22.88 ÷ 4 =
  13. 13.7.2 ÷ 2 =
  14. 14.2.4 ÷ 0.3 =
  15. 15.5/8 × 6/7 =
  16. 16.5/7 ÷ 1/2 =
  17. 17.14.64 ÷ 8 =
  18. 18.2.1 × 0.8 =
  19. 19.One packet of rice weighs 1.4 kg. How many kg do 10 of them make in all? =
  20. 20.1/9 × 5/6 =
  21. 21.One packet of rice weighs 2.4 kg. How many kg do 12 of them make in all? =
  22. 22.3/7 ÷ 1/3 =
  23. 23.4/7 × 14 =
  24. 24.3/4 × 7 =
  25. 25.12.02 ÷ 2 =
  26. 26.7.4 × 0.4 =
  27. 27.3/8 ÷ 1/6 =
  28. 28.4.5 × 0.7 =
  29. 29.4.2 × 0.8 =
  30. 30.1/6 ÷ 3/8 =
  31. 31.1/9 × 1/7 =
  32. 32.4.06 ÷ 2 =
  33. 33.4/5 × 4 =
  34. 34.1/4 ÷ 2/3 =
  35. 35.7.9 × 0.8 =
  36. 36.3.3 × 0.9 =
  37. 37.6/7 × 11 =
  38. 38.4.5 ÷ 0.5 =
  39. 39.3/5 ÷ 3/7 =
  40. 40.3/7 ÷ 2/3 =

Answer key

  1. 0.24
  2. 6.48
  3. 14/25
  4. 16/27
  5. 0.26
  6. 7.93
  7. 3
  8. 1
  9. 45/56
  10. 4/3
  11. 40/27
  12. 5.72
  13. 3.6
  14. 8
  15. 15/28
  16. 10/7
  17. 1.83
  18. 1.68
  19. 14
  20. 5/54
  21. 28.8
  22. 9/7
  23. 8
  24. 21/4
  25. 6.01
  26. 2.96
  27. 9/4
  28. 3.15
  29. 3.36
  30. 4/9
  31. 1/63
  32. 2.03
  33. 16/5
  34. 3/8
  35. 6.32
  36. 2.97
  37. 66/7
  38. 9
  39. 7/5
  40. 9/14

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