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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 81 · 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. 1.3/4 × 6 =
  2. 2.7.2 × 0.6 =
  3. 3.7.7 ÷ 0.7 =
  4. 4.2/3 × 1/6 =
  5. 5.5/9 × 14 =
  6. 6.5/6 ÷ 2/3 =
  7. 7.1/3 ÷ 1/9 =
  8. 8.3/8 × 10 =
  9. 9.5/6 × 13 =
  10. 10.1/9 ÷ 4/9 =
  11. 11.1/6 × 7 =
  12. 12.0.9 ÷ 0.3 =
  13. 13.2/3 × 2/7 =
  14. 14.3/8 × 5/8 =
  15. 15.4/5 ÷ 1/8 =
  16. 16.36.24 ÷ 8 =
  17. 17.1/9 ÷ 2/5 =
  18. 18.6.3 ÷ 0.9 =
  19. 19.One jug of milk holds 3.6 L. How many L do 4 of them make in all? =
  20. 20.2.9 ÷ 2 =
  21. 21.55.12 ÷ 8 =
  22. 22.One jug of milk holds 3.6 L. How many L do 6 of them make in all? =
  23. 23.5/7 ÷ 7/8 =
  24. 24.5/7 ÷ 2/3 =
  25. 25.One packet of rice weighs 2.3 kg. How many kg do 12 of them make in all? =
  26. 26.One bag of potatoes weighs 1.9 kg. How many kg do 8 of them make in all? =
  27. 27.2/5 × 13 =
  28. 28.3/5 × 11 =
  29. 29.1/5 × 1/4 =
  30. 30.68.4 ÷ 8 =
  31. 31.One bag of potatoes weighs 6.8 kg. How many kg do 8 of them make in all? =
  32. 32.8/9 ÷ 7/8 =
  33. 33.7/8 × 5 =
  34. 34.0.8 ÷ 0.2 =
  35. 35.4.6 × 0.2 =
  36. 36.3/5 × 5/6 =
  37. 37.7.2 ÷ 0.6 =
  38. 38.One bag of potatoes weighs 3.5 kg. How many kg do 12 of them make in all? =
  39. 39.3/5 × 2/5 =
  40. 40.18.76 ÷ 4 =

Answer key

  1. 9/2
  2. 4.32
  3. 11
  4. 1/9
  5. 70/9
  6. 5/4
  7. 3
  8. 15/4
  9. 65/6
  10. 1/4
  11. 7/6
  12. 3
  13. 4/21
  14. 15/64
  15. 32/5
  16. 4.53
  17. 5/18
  18. 7
  19. 14.4
  20. 1.45
  21. 6.89
  22. 21.6
  23. 40/49
  24. 15/14
  25. 27.6
  26. 15.2
  27. 26/5
  28. 33/5
  29. 1/20
  30. 8.55
  31. 54.4
  32. 64/63
  33. 35/8
  34. 4
  35. 0.92
  36. 1/2
  37. 12
  38. 42
  39. 6/25
  40. 4.69

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