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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 54 · 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. 1.59.84 ÷ 8 =
  2. 2.3.5 ÷ 0.5 =
  3. 3.9.6 ÷ 0.8 =
  4. 4.3.7 × 0.9 =
  5. 5.27.92 ÷ 4 =
  6. 6.1/5 ÷ 5/9 =
  7. 7.2/3 × 12 =
  8. 8.5.4 ÷ 0.9 =
  9. 9.One roll of ribbon has 3.9 m. How many m do 4 of them make in all? =
  10. 10.28.8 ÷ 4 =
  11. 11.One roll of ribbon has 9.1 m. How many m do 12 of them make in all? =
  12. 12.7.9 × 0.8 =
  13. 13.2/9 × 2/3 =
  14. 14.1/7 × 15 =
  15. 15.1/4 × 12 =
  16. 16.9.44 ÷ 4 =
  17. 17.1/6 × 2/7 =
  18. 18.One bottle of oil holds 2.9 L. How many L do 3 of them make in all? =
  19. 19.5/7 × 1/4 =
  20. 20.1.6 ÷ 0.4 =
  21. 21.8/9 × 3/7 =
  22. 22.3/8 ÷ 2/7 =
  23. 23.1.64 ÷ 2 =
  24. 24.2.2 ÷ 0.2 =
  25. 25.3/5 ÷ 1/3 =
  26. 26.One jug of milk holds 3.9 L. How many L do 11 of them make in all? =
  27. 27.2/9 × 5/9 =
  28. 28.2/9 × 1/4 =
  29. 29.1/6 × 13 =
  30. 30.6.5 × 0.4 =
  31. 31.33.08 ÷ 4 =
  32. 32.5/9 × 7 =
  33. 33.One bottle of oil holds 1.1 L. How many L do 10 of them make in all? =
  34. 34.5/7 × 8 =
  35. 35.1/7 × 12 =
  36. 36.1.5 ÷ 0.5 =
  37. 37.2.4 ÷ 0.2 =
  38. 38.One roll of ribbon has 2.3 m. How many m do 6 of them make in all? =
  39. 39.2.8 × 0.9 =
  40. 40.1.8 ÷ 0.3 =

Answer key

  1. 7.48
  2. 7
  3. 12
  4. 3.33
  5. 6.98
  6. 9/25
  7. 8
  8. 6
  9. 15.6
  10. 7.2
  11. 109.2
  12. 6.32
  13. 4/27
  14. 15/7
  15. 3
  16. 2.36
  17. 1/21
  18. 8.7
  19. 5/28
  20. 4
  21. 8/21
  22. 21/16
  23. 0.82
  24. 11
  25. 9/5
  26. 42.9
  27. 10/81
  28. 1/18
  29. 13/6
  30. 2.6
  31. 8.27
  32. 35/9
  33. 11
  34. 40/7
  35. 12/7
  36. 3
  37. 12
  38. 13.8
  39. 2.52
  40. 6

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