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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 488 · 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. 1.6.4 ÷ 0.8 =
  2. 2.One packet of rice weighs 8.3 kg. How many kg do 6 of them make in all? =
  3. 3.5.7 × 0.9 =
  4. 4.7/8 × 7/8 =
  5. 5.8.1 ÷ 0.9 =
  6. 6.0.9 × 0.5 =
  7. 7.One packet of rice weighs 1.8 kg. How many kg do 3 of them make in all? =
  8. 8.One packet of rice weighs 3.1 kg. How many kg do 11 of them make in all? =
  9. 9.6.14 ÷ 2 =
  10. 10.5 ÷ 0.5 =
  11. 11.1/9 × 14 =
  12. 12.2/9 ÷ 4/7 =
  13. 13.2/5 ÷ 1/2 =
  14. 14.13.36 ÷ 8 =
  15. 15.4.02 ÷ 2 =
  16. 16.69.84 ÷ 8 =
  17. 17.2/7 × 1/3 =
  18. 18.2/9 × 6/7 =
  19. 19.2.7 ÷ 0.9 =
  20. 20.1/5 ÷ 2/7 =
  21. 21.One jug of milk holds 7.7 L. How many L do 9 of them make in all? =
  22. 22.1/4 ÷ 2/9 =
  23. 23.9.9 ÷ 0.9 =
  24. 24.9.6 ÷ 0.8 =
  25. 25.3/7 × 3/4 =
  26. 26.2.7 ÷ 0.3 =
  27. 27.7.9 × 0.6 =
  28. 28.0.9 ÷ 0.3 =
  29. 29.5/8 × 14 =
  30. 30.2/7 × 7/8 =
  31. 31.One packet of rice weighs 1.3 kg. How many kg do 5 of them make in all? =
  32. 32.1/2 × 3 =
  33. 33.One bag of potatoes weighs 3.2 kg. How many kg do 2 of them make in all? =
  34. 34.6.8 × 0.2 =
  35. 35.5.24 ÷ 2 =
  36. 36.1/7 × 4/5 =
  37. 37.36.8 ÷ 4 =
  38. 38.1.6 ÷ 0.4 =
  39. 39.12.22 ÷ 2 =
  40. 40.2/3 ÷ 1/4 =

Answer key

  1. 8
  2. 49.8
  3. 5.13
  4. 49/64
  5. 9
  6. 0.45
  7. 5.4
  8. 34.1
  9. 3.07
  10. 10
  11. 14/9
  12. 7/18
  13. 4/5
  14. 1.67
  15. 2.01
  16. 8.73
  17. 2/21
  18. 4/21
  19. 3
  20. 7/10
  21. 69.3
  22. 9/8
  23. 11
  24. 12
  25. 9/28
  26. 9
  27. 4.74
  28. 3
  29. 35/4
  30. 1/4
  31. 6.5
  32. 3/2
  33. 6.4
  34. 1.36
  35. 2.62
  36. 4/35
  37. 9.2
  38. 4
  39. 6.11
  40. 8/3

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