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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 192 · 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. 1.6/7 × 7 =
  2. 2.2/5 × 9 =
  3. 3.4/7 × 3/8 =
  4. 4.1.2 ÷ 0.3 =
  5. 5.62.72 ÷ 8 =
  6. 6.One bottle of oil holds 6.5 L. How many L do 2 of them make in all? =
  7. 7.1 ÷ 0.5 =
  8. 8.30.44 ÷ 4 =
  9. 9.38.4 ÷ 5 =
  10. 10.5/7 × 1/8 =
  11. 11.3.6 ÷ 0.3 =
  12. 12.One jug of milk holds 1.2 L. How many L do 11 of them make in all? =
  13. 13.One roll of ribbon has 9.4 m. How many m do 4 of them make in all? =
  14. 14.7.8 × 0.6 =
  15. 15.4/5 ÷ 7/8 =
  16. 16.1.4 ÷ 0.7 =
  17. 17.1/4 × 1/7 =
  18. 18.1/5 ÷ 6/7 =
  19. 19.4/7 ÷ 4/5 =
  20. 20.0.6 ÷ 0.3 =
  21. 21.9.75 ÷ 5 =
  22. 22.4/7 × 1/8 =
  23. 23.One bottle of oil holds 8.4 L. How many L do 9 of them make in all? =
  24. 24.7.7 × 0.8 =
  25. 25.1/4 × 3 =
  26. 26.1/3 × 7/9 =
  27. 27.3/7 × 5/7 =
  28. 28.7/9 × 3 =
  29. 29.7/8 × 8 =
  30. 30.1.4 × 0.3 =
  31. 31.1/8 ÷ 2/3 =
  32. 32.One packet of rice weighs 5.4 kg. How many kg do 3 of them make in all? =
  33. 33.7.1 × 0.2 =
  34. 34.12.84 ÷ 2 =
  35. 35.3/7 ÷ 1/5 =
  36. 36.1/3 × 2/3 =
  37. 37.7/8 × 1/9 =
  38. 38.6/7 × 2 =
  39. 39.7.2 × 0.7 =
  40. 40.4/5 × 1/4 =

Answer key

  1. 6
  2. 18/5
  3. 3/14
  4. 4
  5. 7.84
  6. 13
  7. 2
  8. 7.61
  9. 7.68
  10. 5/56
  11. 12
  12. 13.2
  13. 37.6
  14. 4.68
  15. 32/35
  16. 2
  17. 1/28
  18. 7/30
  19. 5/7
  20. 2
  21. 1.95
  22. 1/14
  23. 75.6
  24. 6.16
  25. 3/4
  26. 7/27
  27. 15/49
  28. 7/3
  29. 7
  30. 0.42
  31. 3/16
  32. 16.2
  33. 1.42
  34. 6.42
  35. 15/7
  36. 2/9
  37. 7/72
  38. 12/7
  39. 5.04
  40. 1/5

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