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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 200 · 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. 1.3/5 × 9 =
  2. 2.5/6 × 2/3 =
  3. 3.8.72 ÷ 8 =
  4. 4.1.92 ÷ 8 =
  5. 5.6/7 × 5/7 =
  6. 6.3/8 ÷ 5/6 =
  7. 7.1/9 × 8/9 =
  8. 8.9.9 ÷ 0.9 =
  9. 9.8/9 ÷ 1/5 =
  10. 10.2/9 ÷ 4/7 =
  11. 11.6/7 × 5 =
  12. 12.2/3 × 3/8 =
  13. 13.3.4 × 0.5 =
  14. 14.3/7 × 1/3 =
  15. 15.2/3 × 4 =
  16. 16.28.7 ÷ 5 =
  17. 17.2/3 × 1/9 =
  18. 18.6.5 × 0.3 =
  19. 19.One packet of rice weighs 2.8 kg. How many kg do 3 of them make in all? =
  20. 20.5/7 × 2/3 =
  21. 21.2.9 × 0.4 =
  22. 22.One packet of rice weighs 4.7 kg. How many kg do 6 of them make in all? =
  23. 23.53.68 ÷ 8 =
  24. 24.6/7 × 1/7 =
  25. 25.2/3 × 2/7 =
  26. 26.9.84 ÷ 2 =
  27. 27.2.5 ÷ 0.5 =
  28. 28.3/4 × 5/7 =
  29. 29.2/3 ÷ 2/3 =
  30. 30.1/2 × 7 =
  31. 31.6.5 × 0.6 =
  32. 32.6.7 × 0.2 =
  33. 33.3.2 ÷ 0.8 =
  34. 34.1/8 ÷ 5/8 =
  35. 35.3.7 × 0.6 =
  36. 36.1/6 × 10 =
  37. 37.3.2 × 0.9 =
  38. 38.1/2 × 1/5 =
  39. 39.1.4 ÷ 0.7 =
  40. 40.5/9 ÷ 3/4 =

Answer key

  1. 27/5
  2. 5/9
  3. 1.09
  4. 0.24
  5. 30/49
  6. 9/20
  7. 8/81
  8. 11
  9. 40/9
  10. 7/18
  11. 30/7
  12. 1/4
  13. 1.7
  14. 1/7
  15. 8/3
  16. 5.74
  17. 2/27
  18. 1.95
  19. 8.4
  20. 10/21
  21. 1.16
  22. 28.2
  23. 6.71
  24. 6/49
  25. 4/21
  26. 4.92
  27. 5
  28. 15/28
  29. 1
  30. 7/2
  31. 3.9
  32. 1.34
  33. 4
  34. 1/5
  35. 2.22
  36. 5/3
  37. 2.88
  38. 1/10
  39. 2
  40. 20/27

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