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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 231 · 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. 1.1/7 × 3/8 =
  2. 2.8/9 × 5/8 =
  3. 3.1.7 × 0.3 =
  4. 4.1/6 × 13 =
  5. 5.5/7 × 15 =
  6. 6.2.44 ÷ 4 =
  7. 7.1 ÷ 0.2 =
  8. 8.One packet of rice weighs 7.6 kg. How many kg do 9 of them make in all? =
  9. 9.12.4 ÷ 8 =
  10. 10.2.4 ÷ 0.3 =
  11. 11.10.8 ÷ 5 =
  12. 12.1/2 × 1/6 =
  13. 13.One bottle of oil holds 8.4 L. How many L do 10 of them make in all? =
  14. 14.3/8 × 1/7 =
  15. 15.1/9 ÷ 2/5 =
  16. 16.1/7 × 13 =
  17. 17.4.8 ÷ 0.6 =
  18. 18.1/3 × 6/7 =
  19. 19.One bottle of oil holds 8.8 L. How many L do 2 of them make in all? =
  20. 20.1/9 × 12 =
  21. 21.1.4 × 0.3 =
  22. 22.8/9 ÷ 1/5 =
  23. 23.1/4 × 7 =
  24. 24.3/4 × 2/9 =
  25. 25.3/7 × 4/7 =
  26. 26.7/9 × 1/9 =
  27. 27.3/5 ÷ 2/7 =
  28. 28.1.8 ÷ 0.2 =
  29. 29.One bottle of oil holds 1.4 L. How many L do 5 of them make in all? =
  30. 30.One bottle of oil holds 9 L. How many L do 11 of them make in all? =
  31. 31.1/9 × 3/5 =
  32. 32.5/8 × 3/8 =
  33. 33.1/9 × 2/3 =
  34. 34.5/8 ÷ 2/7 =
  35. 35.3/5 ÷ 7/8 =
  36. 36.1/3 × 3 =
  37. 37.2.1 × 0.3 =
  38. 38.2/5 × 9 =
  39. 39.7.2 ÷ 0.9 =
  40. 40.22.44 ÷ 4 =

Answer key

  1. 3/56
  2. 5/9
  3. 0.51
  4. 13/6
  5. 75/7
  6. 0.61
  7. 5
  8. 68.4
  9. 1.55
  10. 8
  11. 2.16
  12. 1/12
  13. 84
  14. 3/56
  15. 5/18
  16. 13/7
  17. 8
  18. 2/7
  19. 17.6
  20. 4/3
  21. 0.42
  22. 40/9
  23. 7/4
  24. 1/6
  25. 12/49
  26. 7/81
  27. 21/10
  28. 9
  29. 7
  30. 99
  31. 1/15
  32. 15/64
  33. 2/27
  34. 35/16
  35. 24/35
  36. 1
  37. 0.63
  38. 18/5
  39. 8
  40. 5.61

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