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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 511 · 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. 1.15.32 ÷ 2 =
  2. 2.2/9 ÷ 1/9 =
  3. 3.1/8 × 8/9 =
  4. 4.2.1 × 0.5 =
  5. 5.2/7 × 12 =
  6. 6.3/7 × 3 =
  7. 7.1/7 × 1/6 =
  8. 8.1/7 × 12 =
  9. 9.14.24 ÷ 4 =
  10. 10.3/5 × 3/4 =
  11. 11.4 ÷ 0.5 =
  12. 12.6/7 × 3/5 =
  13. 13.4/5 × 2/9 =
  14. 14.3.6 × 0.9 =
  15. 15.1/7 × 1/7 =
  16. 16.5/6 × 1/2 =
  17. 17.22.52 ÷ 4 =
  18. 18.3/5 ÷ 1/4 =
  19. 19.25.76 ÷ 8 =
  20. 20.2/7 × 13 =
  21. 21.35.96 ÷ 4 =
  22. 22.One jug of milk holds 8 L. How many L do 6 of them make in all? =
  23. 23.8.16 ÷ 8 =
  24. 24.8.4 × 0.5 =
  25. 25.5/6 ÷ 1/7 =
  26. 26.10.92 ÷ 4 =
  27. 27.One bag of potatoes weighs 1.7 kg. How many kg do 12 of them make in all? =
  28. 28.3.7 × 0.9 =
  29. 29.1/4 × 2/5 =
  30. 30.One bottle of oil holds 6.1 L. How many L do 5 of them make in all? =
  31. 31.8.9 × 0.2 =
  32. 32.4/7 × 5 =
  33. 33.One packet of rice weighs 4.1 kg. How many kg do 9 of them make in all? =
  34. 34.1/8 × 15 =
  35. 35.27.76 ÷ 4 =
  36. 36.3.6 ÷ 0.4 =
  37. 37.4/7 × 15 =
  38. 38.3.6 ÷ 0.3 =
  39. 39.3/4 × 4 =
  40. 40.2/7 ÷ 2/7 =

Answer key

  1. 7.66
  2. 2
  3. 1/9
  4. 1.05
  5. 24/7
  6. 9/7
  7. 1/42
  8. 12/7
  9. 3.56
  10. 9/20
  11. 8
  12. 18/35
  13. 8/45
  14. 3.24
  15. 1/49
  16. 5/12
  17. 5.63
  18. 12/5
  19. 3.22
  20. 26/7
  21. 8.99
  22. 48
  23. 1.02
  24. 4.2
  25. 35/6
  26. 2.73
  27. 20.4
  28. 3.33
  29. 1/10
  30. 30.5
  31. 1.78
  32. 20/7
  33. 36.9
  34. 15/8
  35. 6.94
  36. 9
  37. 60/7
  38. 12
  39. 3
  40. 1

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