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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 208 · 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 × 9 =
  2. 2.3/4 ÷ 3/5 =
  3. 3.2/9 × 11 =
  4. 4.6.08 ÷ 4 =
  5. 5.10.25 ÷ 5 =
  6. 6.2.4 ÷ 0.2 =
  7. 7.8/9 × 5 =
  8. 8.3.5 ÷ 0.7 =
  9. 9.3/8 × 4/9 =
  10. 10.8/9 × 10 =
  11. 11.40.65 ÷ 5 =
  12. 12.2/3 ÷ 2/5 =
  13. 13.2/5 × 5 =
  14. 14.5/8 × 5/9 =
  15. 15.4/5 × 14 =
  16. 16.1/2 ÷ 1/2 =
  17. 17.12.45 ÷ 5 =
  18. 18.8/9 × 1/2 =
  19. 19.3/5 ÷ 1/3 =
  20. 20.2.2 × 0.4 =
  21. 21.4/7 × 11 =
  22. 22.21.8 ÷ 4 =
  23. 23.One packet of rice weighs 5.2 kg. How many kg do 7 of them make in all? =
  24. 24.5/8 × 1/3 =
  25. 25.28.04 ÷ 4 =
  26. 26.3.6 ÷ 0.3 =
  27. 27.2/9 × 5 =
  28. 28.3/5 ÷ 2/7 =
  29. 29.One bag of potatoes weighs 5.7 kg. How many kg do 7 of them make in all? =
  30. 30.3/8 × 3/7 =
  31. 31.6.1 × 0.2 =
  32. 32.One bottle of oil holds 5.2 L. How many L do 12 of them make in all? =
  33. 33.7/9 × 3/8 =
  34. 34.One packet of rice weighs 4 kg. How many kg do 4 of them make in all? =
  35. 35.2/9 × 4 =
  36. 36.5/8 × 10 =
  37. 37.3.3 × 0.5 =
  38. 38.One packet of rice weighs 6.3 kg. How many kg do 8 of them make in all? =
  39. 39.3/4 × 2 =
  40. 40.3.6 × 0.3 =

Answer key

  1. 27/4
  2. 5/4
  3. 22/9
  4. 1.52
  5. 2.05
  6. 12
  7. 40/9
  8. 5
  9. 1/6
  10. 80/9
  11. 8.13
  12. 5/3
  13. 2
  14. 25/72
  15. 56/5
  16. 1
  17. 2.49
  18. 4/9
  19. 9/5
  20. 0.88
  21. 44/7
  22. 5.45
  23. 36.4
  24. 5/24
  25. 7.01
  26. 12
  27. 10/9
  28. 21/10
  29. 39.9
  30. 9/56
  31. 1.22
  32. 62.4
  33. 7/24
  34. 16
  35. 8/9
  36. 25/4
  37. 1.65
  38. 50.4
  39. 3/2
  40. 1.08

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