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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 369 · 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. 1.22.24 ÷ 8 =
  2. 2.0.1 × 0.7 =
  3. 3.35.08 ÷ 4 =
  4. 4.1/2 × 12 =
  5. 5.One packet of rice weighs 1.5 kg. How many kg do 9 of them make in all? =
  6. 6.5/7 × 13 =
  7. 7.2/7 × 4 =
  8. 8.32.95 ÷ 5 =
  9. 9.2/3 ÷ 1/5 =
  10. 10.4/5 × 7 =
  11. 11.1/3 × 9 =
  12. 12.5/7 ÷ 7/8 =
  13. 13.1 ÷ 0.5 =
  14. 14.41.6 ÷ 8 =
  15. 15.One packet of rice weighs 9.8 kg. How many kg do 7 of them make in all? =
  16. 16.16.16 ÷ 2 =
  17. 17.One jug of milk holds 9 L. How many L do 9 of them make in all? =
  18. 18.6.7 × 0.8 =
  19. 19.2/7 × 1/7 =
  20. 20.9 ÷ 0.9 =
  21. 21.0.8 × 0.8 =
  22. 22.1/5 × 1/5 =
  23. 23.1/6 × 6/7 =
  24. 24.7/8 × 9 =
  25. 25.3/8 × 1/8 =
  26. 26.1/3 × 8/9 =
  27. 27.One packet of rice weighs 3.1 kg. How many kg do 4 of them make in all? =
  28. 28.1.5 ÷ 0.3 =
  29. 29.1/5 × 11 =
  30. 30.1.8 ÷ 0.2 =
  31. 31.1/7 ÷ 3/5 =
  32. 32.9.7 × 0.7 =
  33. 33.2.1 ÷ 2 =
  34. 34.5/8 ÷ 4/9 =
  35. 35.5.4 ÷ 0.6 =
  36. 36.1/9 × 3/7 =
  37. 37.5/9 × 11 =
  38. 38.One bag of potatoes weighs 1.1 kg. How many kg do 2 of them make in all? =
  39. 39.One bag of potatoes weighs 7.3 kg. How many kg do 11 of them make in all? =
  40. 40.6.7 × 0.2 =

Answer key

  1. 2.78
  2. 0.07
  3. 8.77
  4. 6
  5. 13.5
  6. 65/7
  7. 8/7
  8. 6.59
  9. 10/3
  10. 28/5
  11. 3
  12. 40/49
  13. 2
  14. 5.2
  15. 68.6
  16. 8.08
  17. 81
  18. 5.36
  19. 2/49
  20. 10
  21. 0.64
  22. 1/25
  23. 1/7
  24. 63/8
  25. 3/64
  26. 8/27
  27. 12.4
  28. 5
  29. 11/5
  30. 9
  31. 5/21
  32. 6.79
  33. 1.05
  34. 45/32
  35. 9
  36. 1/21
  37. 55/9
  38. 2.2
  39. 80.3
  40. 1.34

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