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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 46 · 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. 1.5.64 ÷ 4 =
  2. 2.5/8 × 9 =
  3. 3.3 ÷ 4 =
  4. 4.2/7 × 1/4 =
  5. 5.9.8 × 0.3 =
  6. 6.3.75 ÷ 5 =
  7. 7.1/3 × 7/9 =
  8. 8.16.48 ÷ 4 =
  9. 9.0.8 × 0.8 =
  10. 10.5.8 × 0.9 =
  11. 11.1/5 × 3/5 =
  12. 12.5/7 × 1/2 =
  13. 13.3.5 ÷ 0.5 =
  14. 14.5 ÷ 0.5 =
  15. 15.1 ÷ 0.2 =
  16. 16.6.4 × 0.5 =
  17. 17.3/8 × 4 =
  18. 18.63.92 ÷ 8 =
  19. 19.3.6 ÷ 0.9 =
  20. 20.One jug of milk holds 5.4 L. How many L do 6 of them make in all? =
  21. 21.1/6 × 2 =
  22. 22.6/7 × 1/9 =
  23. 23.2/9 ÷ 1/7 =
  24. 24.One jug of milk holds 2.5 L. How many L do 11 of them make in all? =
  25. 25.8.1 ÷ 0.9 =
  26. 26.18.74 ÷ 2 =
  27. 27.3.1 × 0.7 =
  28. 28.1/5 × 1/9 =
  29. 29.3/4 × 1/6 =
  30. 30.1 ÷ 0.5 =
  31. 31.One bottle of oil holds 5 L. How many L do 11 of them make in all? =
  32. 32.11.16 ÷ 2 =
  33. 33.3 ÷ 0.5 =
  34. 34.9.6 × 0.8 =
  35. 35.One packet of rice weighs 8.8 kg. How many kg do 6 of them make in all? =
  36. 36.1/6 × 10 =
  37. 37.2.3 × 0.6 =
  38. 38.4/7 × 5 =
  39. 39.1/3 × 9 =
  40. 40.2.7 × 0.5 =

Answer key

  1. 1.41
  2. 45/8
  3. 0.75
  4. 1/14
  5. 2.94
  6. 0.75
  7. 7/27
  8. 4.12
  9. 0.64
  10. 5.22
  11. 3/25
  12. 5/14
  13. 7
  14. 10
  15. 5
  16. 3.2
  17. 3/2
  18. 7.99
  19. 4
  20. 32.4
  21. 1/3
  22. 2/21
  23. 14/9
  24. 27.5
  25. 9
  26. 9.37
  27. 2.17
  28. 1/45
  29. 1/8
  30. 2
  31. 55
  32. 5.58
  33. 6
  34. 7.68
  35. 52.8
  36. 5/3
  37. 1.38
  38. 20/7
  39. 3
  40. 1.35

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