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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 487 · 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. 1.60.48 ÷ 8 =
  2. 2.6/7 ÷ 1/8 =
  3. 3.5.4 × 0.6 =
  4. 4.1/9 × 7 =
  5. 5.1.8 ÷ 0.6 =
  6. 6.8/9 × 2/7 =
  7. 7.2/5 ÷ 4/5 =
  8. 8.3/5 × 9 =
  9. 9.One packet of rice weighs 4.8 kg. How many kg do 6 of them make in all? =
  10. 10.11.2 ÷ 5 =
  11. 11.One bag of potatoes weighs 3.9 kg. How many kg do 4 of them make in all? =
  12. 12.1/3 ÷ 1/4 =
  13. 13.One jug of milk holds 3.6 L. How many L do 3 of them make in all? =
  14. 14.1 ÷ 0.2 =
  15. 15.1/9 ÷ 7/9 =
  16. 16.2.2 ÷ 0.2 =
  17. 17.3/5 × 10 =
  18. 18.3.5 ÷ 0.5 =
  19. 19.4.3 × 0.4 =
  20. 20.3/8 × 6/7 =
  21. 21.One roll of ribbon has 4.6 m. How many m do 10 of them make in all? =
  22. 22.19.16 ÷ 4 =
  23. 23.2/5 ÷ 2/5 =
  24. 24.6/7 × 3 =
  25. 25.3/8 ÷ 4/9 =
  26. 26.23.24 ÷ 4 =
  27. 27.25.35 ÷ 5 =
  28. 28.0.9 × 0.2 =
  29. 29.3.7 × 0.2 =
  30. 30.5/7 ÷ 3/4 =
  31. 31.1/6 × 7/9 =
  32. 32.3/5 ÷ 1/6 =
  33. 33.1/2 × 2/9 =
  34. 34.7.9 × 0.3 =
  35. 35.One packet of rice weighs 6.2 kg. How many kg do 4 of them make in all? =
  36. 36.1/4 × 2 =
  37. 37.One packet of rice weighs 3.6 kg. How many kg do 3 of them make in all? =
  38. 38.2/5 × 4/9 =
  39. 39.3/7 × 8/9 =
  40. 40.4/9 ÷ 1/4 =

Answer key

  1. 7.56
  2. 48/7
  3. 3.24
  4. 7/9
  5. 3
  6. 16/63
  7. 1/2
  8. 27/5
  9. 28.8
  10. 2.24
  11. 15.6
  12. 4/3
  13. 10.8
  14. 5
  15. 1/7
  16. 11
  17. 6
  18. 7
  19. 1.72
  20. 9/28
  21. 46
  22. 4.79
  23. 1
  24. 18/7
  25. 27/32
  26. 5.81
  27. 5.07
  28. 0.18
  29. 0.74
  30. 20/21
  31. 7/54
  32. 18/5
  33. 1/9
  34. 2.37
  35. 24.8
  36. 1/2
  37. 10.8
  38. 8/45
  39. 8/21
  40. 16/9

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