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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 334 · 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. 1.1/3 × 4 =
  2. 2.1/3 ÷ 3/7 =
  3. 3.5/7 × 13 =
  4. 4.6/7 × 1/2 =
  5. 5.1.7 × 0.9 =
  6. 6.2/3 × 10 =
  7. 7.1/4 × 1/8 =
  8. 8.3.8 × 0.3 =
  9. 9.One bottle of oil holds 4.6 L. How many L do 12 of them make in all? =
  10. 10.One bottle of oil holds 2 L. How many L do 3 of them make in all? =
  11. 11.One jug of milk holds 5.1 L. How many L do 10 of them make in all? =
  12. 12.1.4 ÷ 0.2 =
  13. 13.5/6 × 7 =
  14. 14.1/9 × 15 =
  15. 15.1.4 × 0.5 =
  16. 16.9.4 × 0.3 =
  17. 17.9.4 × 0.7 =
  18. 18.1/4 ÷ 1/7 =
  19. 19.One bottle of oil holds 4.2 L. How many L do 8 of them make in all? =
  20. 20.3.66 ÷ 2 =
  21. 21.3/8 ÷ 5/9 =
  22. 22.34.85 ÷ 5 =
  23. 23.1/8 × 4/7 =
  24. 24.1.8 ÷ 0.2 =
  25. 25.3/4 × 9 =
  26. 26.3/8 × 14 =
  27. 27.2.2 × 0.7 =
  28. 28.1.8 ÷ 0.3 =
  29. 29.One bottle of oil holds 4.3 L. How many L do 9 of them make in all? =
  30. 30.45.85 ÷ 5 =
  31. 31.3/4 × 1/6 =
  32. 32.1/7 ÷ 7/9 =
  33. 33.3/5 × 5 =
  34. 34.6/7 × 11 =
  35. 35.1/2 × 2/9 =
  36. 36.26.36 ÷ 4 =
  37. 37.2.9 × 0.6 =
  38. 38.1/4 × 2 =
  39. 39.1/2 × 11 =
  40. 40.4.6 ÷ 2 =

Answer key

  1. 4/3
  2. 7/9
  3. 65/7
  4. 3/7
  5. 1.53
  6. 20/3
  7. 1/32
  8. 1.14
  9. 55.2
  10. 6
  11. 51
  12. 7
  13. 35/6
  14. 5/3
  15. 0.7
  16. 2.82
  17. 6.58
  18. 7/4
  19. 33.6
  20. 1.83
  21. 27/40
  22. 6.97
  23. 1/14
  24. 9
  25. 27/4
  26. 21/4
  27. 1.54
  28. 6
  29. 38.7
  30. 9.17
  31. 1/8
  32. 9/49
  33. 3
  34. 66/7
  35. 1/9
  36. 6.59
  37. 1.74
  38. 1/2
  39. 11/2
  40. 2.3

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