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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 141 · 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. 1.0.8 ÷ 0.4 =
  2. 2.3/4 × 2 =
  3. 3.1/8 × 3/5 =
  4. 4.1/2 × 1/4 =
  5. 5.9.6 × 0.5 =
  6. 6.5/7 × 2 =
  7. 7.7.4 × 0.2 =
  8. 8.4.75 ÷ 5 =
  9. 9.2/9 × 4/5 =
  10. 10.7/9 × 13 =
  11. 11.1.4 ÷ 0.7 =
  12. 12.2/7 × 4/7 =
  13. 13.6.1 ÷ 5 =
  14. 14.1/7 × 4 =
  15. 15.7/9 ÷ 5/6 =
  16. 16.18.84 ÷ 2 =
  17. 17.0.4 × 0.4 =
  18. 18.3/7 ÷ 2/3 =
  19. 19.2/9 × 10 =
  20. 20.1/9 × 7/9 =
  21. 21.1.4 ÷ 0.2 =
  22. 22.1/9 ÷ 1/6 =
  23. 23.1/5 × 9 =
  24. 24.5/8 × 3/5 =
  25. 25.2/3 × 8 =
  26. 26.One jug of milk holds 7.3 L. How many L do 2 of them make in all? =
  27. 27.16.24 ÷ 2 =
  28. 28.One jug of milk holds 7.2 L. How many L do 7 of them make in all? =
  29. 29.1/2 ÷ 3/4 =
  30. 30.10.64 ÷ 2 =
  31. 31.3.2 × 0.9 =
  32. 32.One roll of ribbon has 4.1 m. How many m do 3 of them make in all? =
  33. 33.5.2 × 0.4 =
  34. 34.0.8 ÷ 0.2 =
  35. 35.7.54 ÷ 2 =
  36. 36.8 ÷ 0.8 =
  37. 37.0.9 ÷ 0.3 =
  38. 38.4.8 ÷ 0.8 =
  39. 39.One packet of rice weighs 8.7 kg. How many kg do 2 of them make in all? =
  40. 40.3.6 ÷ 0.4 =

Answer key

  1. 2
  2. 3/2
  3. 3/40
  4. 1/8
  5. 4.8
  6. 10/7
  7. 1.48
  8. 0.95
  9. 8/45
  10. 91/9
  11. 2
  12. 8/49
  13. 1.22
  14. 4/7
  15. 14/15
  16. 9.42
  17. 0.16
  18. 9/14
  19. 20/9
  20. 7/81
  21. 7
  22. 2/3
  23. 9/5
  24. 3/8
  25. 16/3
  26. 14.6
  27. 8.12
  28. 50.4
  29. 2/3
  30. 5.32
  31. 2.88
  32. 12.3
  33. 2.08
  34. 4
  35. 3.77
  36. 10
  37. 3
  38. 6
  39. 17.4
  40. 9

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