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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 410 · 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. 1.3/4 × 1/5 =
  2. 2.32.8 ÷ 4 =
  3. 3.2 ÷ 0.2 =
  4. 4.2.56 ÷ 8 =
  5. 5.1/3 ÷ 6/7 =
  6. 6.7.55 ÷ 5 =
  7. 7.1/5 × 6 =
  8. 8.3/7 × 2/5 =
  9. 9.One bottle of oil holds 5 L. How many L do 12 of them make in all? =
  10. 10.5/7 ÷ 6/7 =
  11. 11.3.6 ÷ 0.3 =
  12. 12.3/5 × 3 =
  13. 13.One bottle of oil holds 8.4 L. How many L do 9 of them make in all? =
  14. 14.13.36 ÷ 4 =
  15. 15.1/4 × 1/7 =
  16. 16.1.4 ÷ 0.7 =
  17. 17.2/3 × 5/7 =
  18. 18.7/8 × 2/5 =
  19. 19.5/8 × 1/5 =
  20. 20.9.8 × 0.2 =
  21. 21.3/4 ÷ 7/8 =
  22. 22.3/7 ÷ 5/9 =
  23. 23.1/8 ÷ 7/9 =
  24. 24.39.12 ÷ 8 =
  25. 25.4/7 × 3/4 =
  26. 26.23.2 ÷ 4 =
  27. 27.2/3 × 7 =
  28. 28.27.64 ÷ 4 =
  29. 29.5.6 ÷ 0.8 =
  30. 30.6/7 × 1/3 =
  31. 31.6.4 ÷ 0.8 =
  32. 32.6.14 ÷ 2 =
  33. 33.0.9 × 0.5 =
  34. 34.3.1 × 0.2 =
  35. 35.0.4 ÷ 0.2 =
  36. 36.5/6 × 10 =
  37. 37.2.4 ÷ 0.2 =
  38. 38.4/5 ÷ 7/9 =
  39. 39.1/2 × 3/4 =
  40. 40.2/9 ÷ 5/8 =

Answer key

  1. 3/20
  2. 8.2
  3. 10
  4. 0.32
  5. 7/18
  6. 1.51
  7. 6/5
  8. 6/35
  9. 60
  10. 5/6
  11. 12
  12. 9/5
  13. 75.6
  14. 3.34
  15. 1/28
  16. 2
  17. 10/21
  18. 7/20
  19. 1/8
  20. 1.96
  21. 6/7
  22. 27/35
  23. 9/56
  24. 4.89
  25. 3/7
  26. 5.8
  27. 14/3
  28. 6.91
  29. 7
  30. 2/7
  31. 8
  32. 3.07
  33. 0.45
  34. 0.62
  35. 2
  36. 25/3
  37. 12
  38. 36/35
  39. 3/8
  40. 16/45

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