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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 510 · 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. 1.9.9 ÷ 0.9 =
  2. 2.2 ÷ 0.4 =
  3. 3.One bottle of oil holds 8.3 L. How many L do 3 of them make in all? =
  4. 4.17.32 ÷ 4 =
  5. 5.2/7 × 4/5 =
  6. 6.1.8 ÷ 0.3 =
  7. 7.1.9 × 0.2 =
  8. 8.74.08 ÷ 8 =
  9. 9.3/7 × 8 =
  10. 10.1/5 × 4 =
  11. 11.0.6 × 0.3 =
  12. 12.5.65 ÷ 5 =
  13. 13.2.8 × 0.7 =
  14. 14.1/4 × 8 =
  15. 15.9.6 ÷ 0.8 =
  16. 16.3.5 ÷ 0.7 =
  17. 17.6/7 ÷ 4/5 =
  18. 18.9.2 × 0.3 =
  19. 19.1 ÷ 4 =
  20. 20.2/3 ÷ 1/7 =
  21. 21.7/9 × 2 =
  22. 22.13.6 ÷ 2 =
  23. 23.11.26 ÷ 2 =
  24. 24.1/4 × 7 =
  25. 25.2/7 × 14 =
  26. 26.12.94 ÷ 2 =
  27. 27.1/9 ÷ 1/4 =
  28. 28.1.4 × 0.7 =
  29. 29.3/4 × 12 =
  30. 30.4.9 × 0.5 =
  31. 31.39.25 ÷ 5 =
  32. 32.3/8 × 7 =
  33. 33.1/4 × 1/5 =
  34. 34.6.3 ÷ 0.7 =
  35. 35.5/6 × 2 =
  36. 36.4/9 × 2/5 =
  37. 37.5/9 × 2 =
  38. 38.4.65 ÷ 5 =
  39. 39.4.5 ÷ 0.5 =
  40. 40.2.4 ÷ 0.6 =

Answer key

  1. 11
  2. 5
  3. 24.9
  4. 4.33
  5. 8/35
  6. 6
  7. 0.38
  8. 9.26
  9. 24/7
  10. 4/5
  11. 0.18
  12. 1.13
  13. 1.96
  14. 2
  15. 12
  16. 5
  17. 15/14
  18. 2.76
  19. 0.25
  20. 14/3
  21. 14/9
  22. 6.8
  23. 5.63
  24. 7/4
  25. 4
  26. 6.47
  27. 4/9
  28. 0.98
  29. 9
  30. 2.45
  31. 7.85
  32. 21/8
  33. 1/20
  34. 9
  35. 5/3
  36. 8/45
  37. 10/9
  38. 0.93
  39. 9
  40. 4

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