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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 201 · 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. 1.4/9 × 11 =
  2. 2.3/7 × 1/9 =
  3. 3.4.46 ÷ 2 =
  4. 4.One roll of ribbon has 5.3 m. How many m do 5 of them make in all? =
  5. 5.2.4 ÷ 0.3 =
  6. 6.10.64 ÷ 8 =
  7. 7.One bottle of oil holds 6.3 L. How many L do 8 of them make in all? =
  8. 8.5.4 ÷ 0.6 =
  9. 9.3/4 × 3 =
  10. 10.19.12 ÷ 4 =
  11. 11.One jug of milk holds 5.1 L. How many L do 10 of them make in all? =
  12. 12.1/6 × 2 =
  13. 13.8/9 × 3 =
  14. 14.7.4 × 0.7 =
  15. 15.14.52 ÷ 4 =
  16. 16.3/5 × 1/8 =
  17. 17.1/3 ÷ 3/7 =
  18. 18.One jug of milk holds 8.2 L. How many L do 4 of them make in all? =
  19. 19.4.2 × 0.3 =
  20. 20.2 ÷ 0.2 =
  21. 21.0.6 ÷ 0.2 =
  22. 22.28.96 ÷ 4 =
  23. 23.2/3 × 1/3 =
  24. 24.One bottle of oil holds 8.4 L. How many L do 11 of them make in all? =
  25. 25.5/8 × 1/9 =
  26. 26.7.1 ÷ 5 =
  27. 27.7/9 ÷ 1/5 =
  28. 28.5/8 × 3/7 =
  29. 29.1.2 ÷ 0.3 =
  30. 30.15.98 ÷ 2 =
  31. 31.7.2 × 0.8 =
  32. 32.One roll of ribbon has 7.1 m. How many m do 4 of them make in all? =
  33. 33.2/7 × 1/6 =
  34. 34.1/6 ÷ 6/7 =
  35. 35.4.7 × 0.4 =
  36. 36.5/9 × 5/6 =
  37. 37.3/5 × 12 =
  38. 38.2/7 ÷ 7/8 =
  39. 39.6.1 × 0.5 =
  40. 40.8/9 × 2/5 =

Answer key

  1. 44/9
  2. 1/21
  3. 2.23
  4. 26.5
  5. 8
  6. 1.33
  7. 50.4
  8. 9
  9. 9/4
  10. 4.78
  11. 51
  12. 1/3
  13. 8/3
  14. 5.18
  15. 3.63
  16. 3/40
  17. 7/9
  18. 32.8
  19. 1.26
  20. 10
  21. 3
  22. 7.24
  23. 2/9
  24. 92.4
  25. 5/72
  26. 1.42
  27. 35/9
  28. 15/56
  29. 4
  30. 7.99
  31. 5.76
  32. 28.4
  33. 1/21
  34. 7/36
  35. 1.88
  36. 25/54
  37. 36/5
  38. 16/49
  39. 3.05
  40. 16/45

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