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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 403 · 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. 1.1/4 × 3/4 =
  2. 2.3/5 × 6/7 =
  3. 3.3/7 × 2 =
  4. 4.1.4 ÷ 2 =
  5. 5.7.2 ÷ 0.9 =
  6. 6.1.3 × 0.7 =
  7. 7.2/3 ÷ 1/6 =
  8. 8.1/6 × 5/9 =
  9. 9.1/5 × 1/9 =
  10. 10.4.8 ÷ 0.4 =
  11. 11.1/9 ÷ 3/4 =
  12. 12.2.4 ÷ 0.2 =
  13. 13.4/5 × 3/8 =
  14. 14.5/9 ÷ 1/5 =
  15. 15.One jug of milk holds 5.1 L. How many L do 2 of them make in all? =
  16. 16.6/7 ÷ 5/6 =
  17. 17.One bottle of oil holds 9.3 L. How many L do 12 of them make in all? =
  18. 18.One packet of rice weighs 3.5 kg. How many kg do 12 of them make in all? =
  19. 19.2.1 ÷ 0.7 =
  20. 20.5/9 × 8 =
  21. 21.4/7 ÷ 5/6 =
  22. 22.2/9 ÷ 2/3 =
  23. 23.21.44 ÷ 8 =
  24. 24.6.98 ÷ 2 =
  25. 25.4 ÷ 0.8 =
  26. 26.0.1 × 0.4 =
  27. 27.22.6 ÷ 5 =
  28. 28.2/3 × 15 =
  29. 29.46.45 ÷ 5 =
  30. 30.2/7 × 2/9 =
  31. 31.9.4 × 0.9 =
  32. 32.0.9 ÷ 0.3 =
  33. 33.One bottle of oil holds 3.7 L. How many L do 8 of them make in all? =
  34. 34.3/4 × 1/6 =
  35. 35.8.64 ÷ 8 =
  36. 36.29.52 ÷ 8 =
  37. 37.1/7 ÷ 8/9 =
  38. 38.1/2 × 9 =
  39. 39.1/7 × 1/8 =
  40. 40.3.5 × 0.7 =

Answer key

  1. 3/16
  2. 18/35
  3. 6/7
  4. 0.7
  5. 8
  6. 0.91
  7. 4
  8. 5/54
  9. 1/45
  10. 12
  11. 4/27
  12. 12
  13. 3/10
  14. 25/9
  15. 10.2
  16. 36/35
  17. 111.6
  18. 42
  19. 3
  20. 40/9
  21. 24/35
  22. 1/3
  23. 2.68
  24. 3.49
  25. 5
  26. 0.04
  27. 4.52
  28. 10
  29. 9.29
  30. 4/63
  31. 8.46
  32. 3
  33. 29.6
  34. 1/8
  35. 1.08
  36. 3.69
  37. 9/56
  38. 9/2
  39. 1/56
  40. 2.45

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