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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 134 · 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. 1.36.8 ÷ 4 =
  2. 2.3/5 × 15 =
  3. 3.2.7 × 0.9 =
  4. 4.One jug of milk holds 3 L. How many L do 4 of them make in all? =
  5. 5.1/4 × 3/5 =
  6. 6.13.7 ÷ 2 =
  7. 7.2.04 ÷ 2 =
  8. 8.One roll of ribbon has 8.9 m. How many m do 6 of them make in all? =
  9. 9.19.68 ÷ 8 =
  10. 10.7/9 × 5/9 =
  11. 11.1.2 ÷ 0.6 =
  12. 12.One jug of milk holds 5.2 L. How many L do 7 of them make in all? =
  13. 13.1/9 × 14 =
  14. 14.One packet of rice weighs 5 kg. How many kg do 10 of them make in all? =
  15. 15.1/9 × 5/7 =
  16. 16.0.8 ÷ 0.4 =
  17. 17.33.4 ÷ 4 =
  18. 18.4.24 ÷ 4 =
  19. 19.5/7 × 5/7 =
  20. 20.12 ÷ 5 =
  21. 21.2.4 ÷ 0.8 =
  22. 22.37.96 ÷ 4 =
  23. 23.7.2 ÷ 0.8 =
  24. 24.3/5 × 7/9 =
  25. 25.4.7 × 0.2 =
  26. 26.1.8 ÷ 0.9 =
  27. 27.One roll of ribbon has 5 m. How many m do 12 of them make in all? =
  28. 28.4/9 ÷ 3/4 =
  29. 29.1/9 × 1/2 =
  30. 30.5.2 × 0.2 =
  31. 31.One roll of ribbon has 9.7 m. How many m do 9 of them make in all? =
  32. 32.17.26 ÷ 2 =
  33. 33.9.4 × 0.8 =
  34. 34.7/8 × 3 =
  35. 35.1/4 × 4 =
  36. 36.5.6 × 0.6 =
  37. 37.2/7 × 7 =
  38. 38.3/7 × 2/7 =
  39. 39.One bottle of oil holds 8.5 L. How many L do 3 of them make in all? =
  40. 40.5.6 ÷ 0.8 =

Answer key

  1. 9.2
  2. 9
  3. 2.43
  4. 12
  5. 3/20
  6. 6.85
  7. 1.02
  8. 53.4
  9. 2.46
  10. 35/81
  11. 2
  12. 36.4
  13. 14/9
  14. 50
  15. 5/63
  16. 2
  17. 8.35
  18. 1.06
  19. 25/49
  20. 2.4
  21. 3
  22. 9.49
  23. 9
  24. 7/15
  25. 0.94
  26. 2
  27. 60
  28. 16/27
  29. 1/18
  30. 1.04
  31. 87.3
  32. 8.63
  33. 7.52
  34. 21/8
  35. 1
  36. 3.36
  37. 2
  38. 6/49
  39. 25.5
  40. 7

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