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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 314 · 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. 1.6 ÷ 0.5 =
  2. 2.3/4 ÷ 5/6 =
  3. 3.One packet of rice weighs 2.9 kg. How many kg do 2 of them make in all? =
  4. 4.1.2 ÷ 0.3 =
  5. 5.19.52 ÷ 4 =
  6. 6.1.44 ÷ 8 =
  7. 7.1/2 ÷ 6/7 =
  8. 8.1/4 × 5 =
  9. 9.One jug of milk holds 8.8 L. How many L do 6 of them make in all? =
  10. 10.1/2 × 9 =
  11. 11.3/7 ÷ 3/7 =
  12. 12.One bottle of oil holds 5.8 L. How many L do 11 of them make in all? =
  13. 13.10.68 ÷ 4 =
  14. 14.1/5 × 14 =
  15. 15.1/5 × 7 =
  16. 16.3/8 ÷ 2/5 =
  17. 17.5/7 ÷ 2/3 =
  18. 18.1/6 × 1/5 =
  19. 19.1/5 ÷ 3/7 =
  20. 20.One roll of ribbon has 9.7 m. How many m do 4 of them make in all? =
  21. 21.3.5 × 0.6 =
  22. 22.7/8 ÷ 1/3 =
  23. 23.5.8 × 0.4 =
  24. 24.5/7 ÷ 1/6 =
  25. 25.1/2 × 8 =
  26. 26.3/8 × 13 =
  27. 27.4.8 × 0.4 =
  28. 28.3/8 × 11 =
  29. 29.4.4 ÷ 0.4 =
  30. 30.3/5 × 4 =
  31. 31.3/4 × 1/3 =
  32. 32.8.3 × 0.6 =
  33. 33.1/2 ÷ 1/4 =
  34. 34.One bottle of oil holds 6.1 L. How many L do 4 of them make in all? =
  35. 35.One packet of rice weighs 6.2 kg. How many kg do 8 of them make in all? =
  36. 36.2/3 ÷ 5/6 =
  37. 37.2.8 ÷ 0.7 =
  38. 38.8.6 × 0.6 =
  39. 39.2/5 × 4/7 =
  40. 40.70.96 ÷ 8 =

Answer key

  1. 12
  2. 9/10
  3. 5.8
  4. 4
  5. 4.88
  6. 0.18
  7. 7/12
  8. 5/4
  9. 52.8
  10. 9/2
  11. 1
  12. 63.8
  13. 2.67
  14. 14/5
  15. 7/5
  16. 15/16
  17. 15/14
  18. 1/30
  19. 7/15
  20. 38.8
  21. 2.1
  22. 21/8
  23. 2.32
  24. 30/7
  25. 4
  26. 39/8
  27. 1.92
  28. 33/8
  29. 11
  30. 12/5
  31. 1/4
  32. 4.98
  33. 2
  34. 24.4
  35. 49.6
  36. 4/5
  37. 4
  38. 5.16
  39. 8/35
  40. 8.87

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