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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 351 · 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. 1.7/9 × 9 =
  2. 2.1.2 ÷ 0.3 =
  3. 3.5.4 × 0.8 =
  4. 4.5.2 × 0.4 =
  5. 5.1/3 ÷ 3/4 =
  6. 6.2/5 × 5/8 =
  7. 7.One bottle of oil holds 6.5 L. How many L do 11 of them make in all? =
  8. 8.3.3 ÷ 0.3 =
  9. 9.75.44 ÷ 8 =
  10. 10.1.2 × 0.4 =
  11. 11.4.6 × 0.2 =
  12. 12.4.1 × 0.4 =
  13. 13.5/9 × 13 =
  14. 14.3/7 × 8 =
  15. 15.1/3 × 3/5 =
  16. 16.5/7 × 11 =
  17. 17.34.8 ÷ 5 =
  18. 18.45.36 ÷ 8 =
  19. 19.5/8 × 2 =
  20. 20.5/8 × 1/8 =
  21. 21.6 ÷ 0.5 =
  22. 22.8/9 × 4 =
  23. 23.3/5 × 2/7 =
  24. 24.5.6 ÷ 0.8 =
  25. 25.4 ÷ 0.5 =
  26. 26.1/5 × 7 =
  27. 27.1/3 × 13 =
  28. 28.2.3 × 0.3 =
  29. 29.39.76 ÷ 8 =
  30. 30.1.1 × 0.6 =
  31. 31.16.88 ÷ 2 =
  32. 32.3.7 × 0.2 =
  33. 33.3.28 ÷ 8 =
  34. 34.3/4 ÷ 3/5 =
  35. 35.2.3 ÷ 5 =
  36. 36.42.95 ÷ 5 =
  37. 37.3/8 × 8 =
  38. 38.1/6 × 9 =
  39. 39.One bottle of oil holds 8.4 L. How many L do 4 of them make in all? =
  40. 40.1/2 ÷ 1/9 =

Answer key

  1. 7
  2. 4
  3. 4.32
  4. 2.08
  5. 4/9
  6. 1/4
  7. 71.5
  8. 11
  9. 9.43
  10. 0.48
  11. 0.92
  12. 1.64
  13. 65/9
  14. 24/7
  15. 1/5
  16. 55/7
  17. 6.96
  18. 5.67
  19. 5/4
  20. 5/64
  21. 12
  22. 32/9
  23. 6/35
  24. 7
  25. 8
  26. 7/5
  27. 13/3
  28. 0.69
  29. 4.97
  30. 0.66
  31. 8.44
  32. 0.74
  33. 0.41
  34. 5/4
  35. 0.46
  36. 8.59
  37. 3
  38. 3/2
  39. 33.6
  40. 9/2

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