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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 244 · 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. 1.2/9 × 1/7 =
  2. 2.2/7 × 4/9 =
  3. 3.4.8 ÷ 0.8 =
  4. 4.5/7 ÷ 1/4 =
  5. 5.34.64 ÷ 8 =
  6. 6.1/9 × 5 =
  7. 7.2/5 × 4/7 =
  8. 8.1/9 × 5/6 =
  9. 9.1.2 ÷ 0.4 =
  10. 10.5/8 ÷ 2/9 =
  11. 11.1/9 × 12 =
  12. 12.15.66 ÷ 2 =
  13. 13.2.4 ÷ 0.8 =
  14. 14.8.1 × 0.2 =
  15. 15.2/7 × 13 =
  16. 16.4/7 × 6 =
  17. 17.1/3 × 3/5 =
  18. 18.One jug of milk holds 4.2 L. How many L do 6 of them make in all? =
  19. 19.One packet of rice weighs 7.3 kg. How many kg do 2 of them make in all? =
  20. 20.1/6 × 7/8 =
  21. 21.2.8 × 0.9 =
  22. 22.1/4 ÷ 2/9 =
  23. 23.One bag of potatoes weighs 5.1 kg. How many kg do 2 of them make in all? =
  24. 24.0.9 ÷ 0.3 =
  25. 25.2/5 × 1/4 =
  26. 26.One bottle of oil holds 8.4 L. How many L do 11 of them make in all? =
  27. 27.5/6 × 15 =
  28. 28.0.6 × 0.7 =
  29. 29.3/5 × 7 =
  30. 30.3/5 × 3 =
  31. 31.3/8 × 14 =
  32. 32.2/3 × 4/9 =
  33. 33.One roll of ribbon has 3.6 m. How many m do 3 of them make in all? =
  34. 34.6/7 ÷ 5/7 =
  35. 35.3/7 × 1/3 =
  36. 36.69.6 ÷ 8 =
  37. 37.2/7 × 8 =
  38. 38.8/9 × 4 =
  39. 39.62 ÷ 8 =
  40. 40.3/4 × 13 =

Answer key

  1. 2/63
  2. 8/63
  3. 6
  4. 20/7
  5. 4.33
  6. 5/9
  7. 8/35
  8. 5/54
  9. 3
  10. 45/16
  11. 4/3
  12. 7.83
  13. 3
  14. 1.62
  15. 26/7
  16. 24/7
  17. 1/5
  18. 25.2
  19. 14.6
  20. 7/48
  21. 2.52
  22. 9/8
  23. 10.2
  24. 3
  25. 1/10
  26. 92.4
  27. 25/2
  28. 0.42
  29. 21/5
  30. 9/5
  31. 21/4
  32. 8/27
  33. 10.8
  34. 6/5
  35. 1/7
  36. 8.7
  37. 16/7
  38. 32/9
  39. 7.75
  40. 39/4

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