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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 310 · 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. 1.5.3 × 0.9 =
  2. 2.1/7 × 4/7 =
  3. 3.2/3 × 1/5 =
  4. 4.7/9 × 6 =
  5. 5.1/4 × 1/2 =
  6. 6.7/8 × 3/7 =
  7. 7.1.1 × 0.2 =
  8. 8.6 ÷ 0.5 =
  9. 9.39.15 ÷ 5 =
  10. 10.6/7 ÷ 1/4 =
  11. 11.2.4 ÷ 0.2 =
  12. 12.1/6 × 1/7 =
  13. 13.8.1 × 0.2 =
  14. 14.0.8 × 0.4 =
  15. 15.8/9 × 3/5 =
  16. 16.34.64 ÷ 8 =
  17. 17.7.2 ÷ 0.6 =
  18. 18.One bottle of oil holds 6.6 L. How many L do 3 of them make in all? =
  19. 19.One packet of rice weighs 2.6 kg. How many kg do 4 of them make in all? =
  20. 20.3/5 × 5 =
  21. 21.6.6 ÷ 0.6 =
  22. 22.6/7 ÷ 7/9 =
  23. 23.3/4 × 1/2 =
  24. 24.6.6 × 0.9 =
  25. 25.One jug of milk holds 6.3 L. How many L do 3 of them make in all? =
  26. 26.5/8 × 2/3 =
  27. 27.One roll of ribbon has 3.5 m. How many m do 6 of them make in all? =
  28. 28.5.2 × 0.5 =
  29. 29.One roll of ribbon has 7.4 m. How many m do 7 of them make in all? =
  30. 30.3/4 ÷ 1/5 =
  31. 31.3.3 × 0.8 =
  32. 32.5.8 × 0.2 =
  33. 33.3/4 ÷ 3/8 =
  34. 34.2/7 × 3 =
  35. 35.One bottle of oil holds 1.4 L. How many L do 2 of them make in all? =
  36. 36.1/8 × 3/8 =
  37. 37.3.2 × 0.6 =
  38. 38.5/6 × 6 =
  39. 39.11.96 ÷ 4 =
  40. 40.38.15 ÷ 5 =

Answer key

  1. 4.77
  2. 4/49
  3. 2/15
  4. 14/3
  5. 1/8
  6. 3/8
  7. 0.22
  8. 12
  9. 7.83
  10. 24/7
  11. 12
  12. 1/42
  13. 1.62
  14. 0.32
  15. 8/15
  16. 4.33
  17. 12
  18. 19.8
  19. 10.4
  20. 3
  21. 11
  22. 54/49
  23. 3/8
  24. 5.94
  25. 18.9
  26. 5/12
  27. 21
  28. 2.6
  29. 51.8
  30. 15/4
  31. 2.64
  32. 1.16
  33. 2
  34. 6/7
  35. 2.8
  36. 3/64
  37. 1.92
  38. 5
  39. 2.99
  40. 7.63

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