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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 139 · 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. 1.5/6 × 12 =
  2. 2.7.34 ÷ 2 =
  3. 3.3.6 ÷ 0.4 =
  4. 4.7/9 × 1/3 =
  5. 5.8.7 × 0.6 =
  6. 6.2/3 × 1/5 =
  7. 7.1/2 × 1/6 =
  8. 8.7.2 ÷ 0.9 =
  9. 9.2/3 × 3/5 =
  10. 10.5/8 ÷ 1/7 =
  11. 11.9.3 × 0.2 =
  12. 12.5/8 × 4/5 =
  13. 13.56.96 ÷ 8 =
  14. 14.3/5 ÷ 1/4 =
  15. 15.5.5 ÷ 0.5 =
  16. 16.1/6 × 5/7 =
  17. 17.One bottle of oil holds 1.2 L. How many L do 12 of them make in all? =
  18. 18.36.12 ÷ 4 =
  19. 19.4.8 ÷ 0.8 =
  20. 20.2.7 ÷ 0.3 =
  21. 21.2/3 × 4/9 =
  22. 22.2/7 × 6 =
  23. 23.5.62 ÷ 2 =
  24. 24.2/3 × 2/5 =
  25. 25.2/7 × 5 =
  26. 26.One packet of rice weighs 6.7 kg. How many kg do 5 of them make in all? =
  27. 27.5/9 × 15 =
  28. 28.2.2 × 0.2 =
  29. 29.3/4 ÷ 3/5 =
  30. 30.8.2 × 0.8 =
  31. 31.7/8 × 4/9 =
  32. 32.One roll of ribbon has 1.9 m. How many m do 12 of them make in all? =
  33. 33.1/5 × 6 =
  34. 34.1/4 × 13 =
  35. 35.17.76 ÷ 8 =
  36. 36.3/7 × 10 =
  37. 37.1/3 ÷ 1/3 =
  38. 38.1/3 ÷ 2/7 =
  39. 39.5.55 ÷ 5 =
  40. 40.One jug of milk holds 4 L. How many L do 5 of them make in all? =

Answer key

  1. 10
  2. 3.67
  3. 9
  4. 7/27
  5. 5.22
  6. 2/15
  7. 1/12
  8. 8
  9. 2/5
  10. 35/8
  11. 1.86
  12. 1/2
  13. 7.12
  14. 12/5
  15. 11
  16. 5/42
  17. 14.4
  18. 9.03
  19. 6
  20. 9
  21. 8/27
  22. 12/7
  23. 2.81
  24. 4/15
  25. 10/7
  26. 33.5
  27. 25/3
  28. 0.44
  29. 5/4
  30. 6.56
  31. 7/18
  32. 22.8
  33. 6/5
  34. 13/4
  35. 2.22
  36. 30/7
  37. 1
  38. 7/6
  39. 1.11
  40. 20

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