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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 100 · 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. 1.4.2 ÷ 0.7 =
  2. 2.3.1 × 0.3 =
  3. 3.1/3 × 4/9 =
  4. 4.2/9 ÷ 1/6 =
  5. 5.3/8 ÷ 8/9 =
  6. 6.29.2 ÷ 8 =
  7. 7.0.3 × 0.8 =
  8. 8.4/5 × 4 =
  9. 9.8/9 ÷ 1/3 =
  10. 10.4/5 ÷ 4/7 =
  11. 11.4/5 ÷ 6/7 =
  12. 12.5/6 × 4 =
  13. 13.One roll of ribbon has 7.4 m. How many m do 11 of them make in all? =
  14. 14.4/9 × 15 =
  15. 15.3/8 × 2/3 =
  16. 16.38.75 ÷ 5 =
  17. 17.62.88 ÷ 8 =
  18. 18.1/4 ÷ 1/9 =
  19. 19.7/9 × 4/5 =
  20. 20.6.1 × 0.8 =
  21. 21.1.7 × 0.7 =
  22. 22.3/4 × 6/7 =
  23. 23.3.98 ÷ 2 =
  24. 24.0.9 × 0.4 =
  25. 25.18.24 ÷ 2 =
  26. 26.0.4 × 0.2 =
  27. 27.25.32 ÷ 4 =
  28. 28.1/4 × 5/7 =
  29. 29.2/3 × 2/5 =
  30. 30.3 ÷ 0.5 =
  31. 31.6/7 × 11 =
  32. 32.3/5 ÷ 1/9 =
  33. 33.One packet of rice weighs 7.4 kg. How many kg do 12 of them make in all? =
  34. 34.7.6 ÷ 2 =
  35. 35.2/7 × 2/5 =
  36. 36.1/9 ÷ 1/6 =
  37. 37.1.8 ÷ 0.9 =
  38. 38.8.4 ÷ 0.7 =
  39. 39.3.6 ÷ 0.4 =
  40. 40.2/9 × 7/8 =

Answer key

  1. 6
  2. 0.93
  3. 4/27
  4. 4/3
  5. 27/64
  6. 3.65
  7. 0.24
  8. 16/5
  9. 8/3
  10. 7/5
  11. 14/15
  12. 10/3
  13. 81.4
  14. 20/3
  15. 1/4
  16. 7.75
  17. 7.86
  18. 9/4
  19. 28/45
  20. 4.88
  21. 1.19
  22. 9/14
  23. 1.99
  24. 0.36
  25. 9.12
  26. 0.08
  27. 6.33
  28. 5/28
  29. 4/15
  30. 6
  31. 66/7
  32. 27/5
  33. 88.8
  34. 3.8
  35. 4/35
  36. 2/3
  37. 2
  38. 12
  39. 9
  40. 7/36

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