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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 157 · 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. 1.1.6 ÷ 0.8 =
  2. 2.5/7 × 5/7 =
  3. 3.5/9 × 12 =
  4. 4.7.1 × 0.3 =
  5. 5.3/4 ÷ 1/2 =
  6. 6.7.2 ÷ 0.8 =
  7. 7.One packet of rice weighs 4 kg. How many kg do 10 of them make in all? =
  8. 8.9.9 × 0.5 =
  9. 9.2/9 × 2 =
  10. 10.4/9 × 3/5 =
  11. 11.1/7 × 13 =
  12. 12.1/7 × 4/7 =
  13. 13.2/7 × 11 =
  14. 14.0.8 ÷ 0.4 =
  15. 15.1/4 × 5 =
  16. 16.One bottle of oil holds 7.5 L. How many L do 6 of them make in all? =
  17. 17.4/9 × 4 =
  18. 18.1.3 × 0.7 =
  19. 19.1.4 ÷ 0.7 =
  20. 20.1/3 × 6 =
  21. 21.5.7 × 0.7 =
  22. 22.1/7 ÷ 1/8 =
  23. 23.8.7 × 0.9 =
  24. 24.21.65 ÷ 5 =
  25. 25.13.6 ÷ 5 =
  26. 26.4/5 × 6/7 =
  27. 27.4.1 × 0.2 =
  28. 28.5/9 × 1/3 =
  29. 29.5/9 × 4/5 =
  30. 30.3/4 × 2 =
  31. 31.One packet of rice weighs 6.6 kg. How many kg do 9 of them make in all? =
  32. 32.33.24 ÷ 4 =
  33. 33.One jug of milk holds 5.3 L. How many L do 2 of them make in all? =
  34. 34.2/9 × 2/7 =
  35. 35.2/3 × 1/9 =
  36. 36.2/5 × 15 =
  37. 37.5/6 ÷ 1/6 =
  38. 38.7/9 × 10 =
  39. 39.5/8 × 1/2 =
  40. 40.One packet of rice weighs 8.6 kg. How many kg do 9 of them make in all? =

Answer key

  1. 2
  2. 25/49
  3. 20/3
  4. 2.13
  5. 3/2
  6. 9
  7. 40
  8. 4.95
  9. 4/9
  10. 4/15
  11. 13/7
  12. 4/49
  13. 22/7
  14. 2
  15. 5/4
  16. 45
  17. 16/9
  18. 0.91
  19. 2
  20. 2
  21. 3.99
  22. 8/7
  23. 7.83
  24. 4.33
  25. 2.72
  26. 24/35
  27. 0.82
  28. 5/27
  29. 4/9
  30. 3/2
  31. 59.4
  32. 8.31
  33. 10.6
  34. 4/63
  35. 2/27
  36. 6
  37. 5
  38. 70/9
  39. 5/16
  40. 77.4

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