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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 486 · 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. 1.13.75 ÷ 5 =
  2. 2.5.7 × 0.5 =
  3. 3.7.35 ÷ 5 =
  4. 4.74.48 ÷ 8 =
  5. 5.5.6 × 0.7 =
  6. 6.1/2 × 2 =
  7. 7.5/8 × 7/8 =
  8. 8.29.64 ÷ 4 =
  9. 9.26.88 ÷ 4 =
  10. 10.41.28 ÷ 8 =
  11. 11.49.65 ÷ 5 =
  12. 12.7/9 × 15 =
  13. 13.3/5 × 1/4 =
  14. 14.5/7 × 6/7 =
  15. 15.33.64 ÷ 4 =
  16. 16.1/2 × 14 =
  17. 17.One roll of ribbon has 8.8 m. How many m do 4 of them make in all? =
  18. 18.1/2 × 5/6 =
  19. 19.1/4 × 4 =
  20. 20.4/9 × 1/9 =
  21. 21.3/5 × 10 =
  22. 22.3/5 × 9 =
  23. 23.4/9 ÷ 1/2 =
  24. 24.1/7 × 14 =
  25. 25.2.2 ÷ 0.2 =
  26. 26.5/6 × 14 =
  27. 27.3/4 × 1/9 =
  28. 28.5/6 × 8 =
  29. 29.1.4 ÷ 0.2 =
  30. 30.6.9 × 0.5 =
  31. 31.5/6 × 7 =
  32. 32.One bag of potatoes weighs 4.4 kg. How many kg do 6 of them make in all? =
  33. 33.6.84 ÷ 2 =
  34. 34.One bottle of oil holds 8.2 L. How many L do 3 of them make in all? =
  35. 35.One jug of milk holds 8.8 L. How many L do 11 of them make in all? =
  36. 36.0.4 ÷ 0.2 =
  37. 37.4/5 × 2 =
  38. 38.2/5 ÷ 1/9 =
  39. 39.1/9 × 14 =
  40. 40.2/9 ÷ 4/7 =

Answer key

  1. 2.75
  2. 2.85
  3. 1.47
  4. 9.31
  5. 3.92
  6. 1
  7. 35/64
  8. 7.41
  9. 6.72
  10. 5.16
  11. 9.93
  12. 35/3
  13. 3/20
  14. 30/49
  15. 8.41
  16. 7
  17. 35.2
  18. 5/12
  19. 1
  20. 4/81
  21. 6
  22. 27/5
  23. 8/9
  24. 2
  25. 11
  26. 35/3
  27. 1/12
  28. 20/3
  29. 7
  30. 3.45
  31. 35/6
  32. 26.4
  33. 3.42
  34. 24.6
  35. 96.8
  36. 2
  37. 8/5
  38. 18/5
  39. 14/9
  40. 7/18

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