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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 316 · 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. 1.22.72 ÷ 4 =
  2. 2.9.8 × 0.8 =
  3. 3.13.48 ÷ 2 =
  4. 4.7 ÷ 0.7 =
  5. 5.4/9 × 3/8 =
  6. 6.One jug of milk holds 4.7 L. How many L do 11 of them make in all? =
  7. 7.1/5 × 6 =
  8. 8.3.28 ÷ 4 =
  9. 9.26.76 ÷ 4 =
  10. 10.2/5 ÷ 7/9 =
  11. 11.1/2 × 7 =
  12. 12.76.48 ÷ 8 =
  13. 13.One jug of milk holds 1.7 L. How many L do 3 of them make in all? =
  14. 14.3.6 ÷ 0.4 =
  15. 15.6/7 × 2 =
  16. 16.One roll of ribbon has 4.6 m. How many m do 5 of them make in all? =
  17. 17.2/5 ÷ 2/9 =
  18. 18.3/8 × 1/6 =
  19. 19.6/7 × 1/5 =
  20. 20.1/2 × 5/7 =
  21. 21.64.4 ÷ 8 =
  22. 22.1/7 × 11 =
  23. 23.5/6 × 2/7 =
  24. 24.2/3 × 1/5 =
  25. 25.22.16 ÷ 4 =
  26. 26.1/7 × 6 =
  27. 27.5.3 × 0.9 =
  28. 28.2/3 × 14 =
  29. 29.5/8 ÷ 8/9 =
  30. 30.One roll of ribbon has 6.7 m. How many m do 10 of them make in all? =
  31. 31.6.4 × 0.6 =
  32. 32.One jug of milk holds 5.6 L. How many L do 2 of them make in all? =
  33. 33.2/5 ÷ 7/8 =
  34. 34.2/9 × 1/3 =
  35. 35.4/5 × 2 =
  36. 36.6/7 × 7/8 =
  37. 37.3/7 × 2/7 =
  38. 38.3/8 ÷ 2/7 =
  39. 39.1/3 ÷ 4/5 =
  40. 40.2/9 × 6 =

Answer key

  1. 5.68
  2. 7.84
  3. 6.74
  4. 10
  5. 1/6
  6. 51.7
  7. 6/5
  8. 0.82
  9. 6.69
  10. 18/35
  11. 7/2
  12. 9.56
  13. 5.1
  14. 9
  15. 12/7
  16. 23
  17. 9/5
  18. 1/16
  19. 6/35
  20. 5/14
  21. 8.05
  22. 11/7
  23. 5/21
  24. 2/15
  25. 5.54
  26. 6/7
  27. 4.77
  28. 28/3
  29. 45/64
  30. 67
  31. 3.84
  32. 11.2
  33. 16/35
  34. 2/27
  35. 8/5
  36. 3/4
  37. 6/49
  38. 21/16
  39. 5/12
  40. 4/3

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