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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 272 · 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 ÷ 1/3 =
  2. 2.1.6 × 0.5 =
  3. 3.7.8 × 0.5 =
  4. 4.2/7 × 3/7 =
  5. 5.4.82 ÷ 2 =
  6. 6.1/4 × 4 =
  7. 7.2/5 × 1/2 =
  8. 8.33.25 ÷ 5 =
  9. 9.2.3 × 0.5 =
  10. 10.3/4 ÷ 2/7 =
  11. 11.4.9 ÷ 0.7 =
  12. 12.10.45 ÷ 5 =
  13. 13.6/7 × 15 =
  14. 14.40.45 ÷ 5 =
  15. 15.1/4 × 5/6 =
  16. 16.23.48 ÷ 4 =
  17. 17.7/9 × 4 =
  18. 18.One packet of rice weighs 9.9 kg. How many kg do 2 of them make in all? =
  19. 19.One bottle of oil holds 4.4 L. How many L do 6 of them make in all? =
  20. 20.8.28 ÷ 2 =
  21. 21.One bottle of oil holds 2.2 L. How many L do 5 of them make in all? =
  22. 22.2/9 ÷ 5/6 =
  23. 23.One roll of ribbon has 4 m. How many m do 3 of them make in all? =
  24. 24.2/7 × 8/9 =
  25. 25.1.8 ÷ 0.2 =
  26. 26.4.9 × 0.7 =
  27. 27.2.8 ÷ 0.4 =
  28. 28.2/5 × 8 =
  29. 29.2/3 × 1/7 =
  30. 30.2/3 ÷ 8/9 =
  31. 31.2/5 × 7/9 =
  32. 32.1/2 × 4/9 =
  33. 33.One bottle of oil holds 9.4 L. How many L do 6 of them make in all? =
  34. 34.1/7 × 7 =
  35. 35.One roll of ribbon has 2.2 m. How many m do 3 of them make in all? =
  36. 36.6.3 × 0.8 =
  37. 37.78.8 ÷ 8 =
  38. 38.7/9 × 3/4 =
  39. 39.1/5 × 12 =
  40. 40.2.4 ÷ 0.6 =

Answer key

  1. 2/3
  2. 0.8
  3. 3.9
  4. 6/49
  5. 2.41
  6. 1
  7. 1/5
  8. 6.65
  9. 1.15
  10. 21/8
  11. 7
  12. 2.09
  13. 90/7
  14. 8.09
  15. 5/24
  16. 5.87
  17. 28/9
  18. 19.8
  19. 26.4
  20. 4.14
  21. 11
  22. 4/15
  23. 12
  24. 16/63
  25. 9
  26. 3.43
  27. 7
  28. 16/5
  29. 2/21
  30. 3/4
  31. 14/45
  32. 2/9
  33. 56.4
  34. 1
  35. 6.6
  36. 5.04
  37. 9.85
  38. 7/12
  39. 12/5
  40. 4

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