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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 481 · 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. 1.7/8 ÷ 1/5 =
  2. 2.5.4 × 0.2 =
  3. 3.1/7 ÷ 1/2 =
  4. 4.23.1 ÷ 5 =
  5. 5.2/3 × 14 =
  6. 6.5/8 × 5/6 =
  7. 7.7/8 ÷ 1/3 =
  8. 8.1/8 ÷ 1/5 =
  9. 9.6.4 × 0.9 =
  10. 10.1/9 ÷ 1/8 =
  11. 11.5 ÷ 0.5 =
  12. 12.3.6 ÷ 0.3 =
  13. 13.1/8 ÷ 8/9 =
  14. 14.5/6 × 6 =
  15. 15.One bottle of oil holds 7.6 L. How many L do 8 of them make in all? =
  16. 16.One packet of rice weighs 2 kg. How many kg do 7 of them make in all? =
  17. 17.1/8 × 1/3 =
  18. 18.25.88 ÷ 4 =
  19. 19.3/7 ÷ 1/3 =
  20. 20.17.2 ÷ 2 =
  21. 21.12.42 ÷ 2 =
  22. 22.1.2 ÷ 0.2 =
  23. 23.1.4 × 0.8 =
  24. 24.1/7 × 8 =
  25. 25.2/5 ÷ 1/2 =
  26. 26.2/9 × 3/7 =
  27. 27.4/9 × 3/4 =
  28. 28.7.8 × 0.7 =
  29. 29.One packet of rice weighs 7.9 kg. How many kg do 5 of them make in all? =
  30. 30.3 ÷ 0.3 =
  31. 31.2.9 × 0.4 =
  32. 32.3.9 × 0.4 =
  33. 33.2/3 × 3/7 =
  34. 34.5/9 × 14 =
  35. 35.9.28 ÷ 8 =
  36. 36.8/9 × 5/8 =
  37. 37.1/6 ÷ 1/5 =
  38. 38.1/5 × 13 =
  39. 39.3/8 × 1/8 =
  40. 40.One jug of milk holds 3.7 L. How many L do 4 of them make in all? =

Answer key

  1. 35/8
  2. 1.08
  3. 2/7
  4. 4.62
  5. 28/3
  6. 25/48
  7. 21/8
  8. 5/8
  9. 5.76
  10. 8/9
  11. 10
  12. 12
  13. 9/64
  14. 5
  15. 60.8
  16. 14
  17. 1/24
  18. 6.47
  19. 9/7
  20. 8.6
  21. 6.21
  22. 6
  23. 1.12
  24. 8/7
  25. 4/5
  26. 2/21
  27. 1/3
  28. 5.46
  29. 39.5
  30. 10
  31. 1.16
  32. 1.56
  33. 2/7
  34. 70/9
  35. 1.16
  36. 5/9
  37. 5/6
  38. 13/5
  39. 3/64
  40. 14.8

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