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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 33 · 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. 1.8.5 × 0.2 =
  2. 2.3/8 × 8 =
  3. 3.20.35 ÷ 5 =
  4. 4.1/3 × 7/8 =
  5. 5.4/5 × 5 =
  6. 6.5/7 ÷ 1/9 =
  7. 7.3/4 ÷ 2/3 =
  8. 8.One bottle of oil holds 5.1 L. How many L do 8 of them make in all? =
  9. 9.5/6 × 8 =
  10. 10.1/8 × 4 =
  11. 11.1/5 ÷ 3/7 =
  12. 12.1.3 × 0.3 =
  13. 13.5/7 × 3 =
  14. 14.1.92 ÷ 4 =
  15. 15.11.15 ÷ 5 =
  16. 16.2/7 ÷ 1/5 =
  17. 17.16.96 ÷ 4 =
  18. 18.1 ÷ 0.2 =
  19. 19.3/5 × 11 =
  20. 20.1/3 ÷ 7/8 =
  21. 21.6.4 × 0.3 =
  22. 22.3 ÷ 0.6 =
  23. 23.2/3 ÷ 1/4 =
  24. 24.6 ÷ 0.5 =
  25. 25.36.88 ÷ 4 =
  26. 26.17.24 ÷ 4 =
  27. 27.1.8 ÷ 2 =
  28. 28.5/6 × 9 =
  29. 29.8.1 ÷ 0.9 =
  30. 30.4/9 ÷ 3/8 =
  31. 31.One bottle of oil holds 6.2 L. How many L do 7 of them make in all? =
  32. 32.6.12 ÷ 4 =
  33. 33.4/5 ÷ 5/9 =
  34. 34.1/9 × 1/7 =
  35. 35.1/2 × 5 =
  36. 36.20.08 ÷ 8 =
  37. 37.4/5 × 10 =
  38. 38.22.8 ÷ 5 =
  39. 39.6.6 × 0.4 =
  40. 40.3/4 ÷ 3/4 =

Answer key

  1. 1.7
  2. 3
  3. 4.07
  4. 7/24
  5. 4
  6. 45/7
  7. 9/8
  8. 40.8
  9. 20/3
  10. 1/2
  11. 7/15
  12. 0.39
  13. 15/7
  14. 0.48
  15. 2.23
  16. 10/7
  17. 4.24
  18. 5
  19. 33/5
  20. 8/21
  21. 1.92
  22. 5
  23. 8/3
  24. 12
  25. 9.22
  26. 4.31
  27. 0.9
  28. 15/2
  29. 9
  30. 32/27
  31. 43.4
  32. 1.53
  33. 36/25
  34. 1/63
  35. 5/2
  36. 2.51
  37. 8
  38. 4.56
  39. 2.64
  40. 1

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