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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 372 · 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. 1.8/9 × 2/5 =
  2. 2.1.5 × 0.9 =
  3. 3.5/7 ÷ 1/5 =
  4. 4.2/3 × 5/6 =
  5. 5.One bottle of oil holds 9.4 L. How many L do 7 of them make in all? =
  6. 6.5/9 × 8 =
  7. 7.3/8 × 15 =
  8. 8.6.7 × 0.2 =
  9. 9.One packet of rice weighs 6 kg. How many kg do 4 of them make in all? =
  10. 10.One jug of milk holds 8.5 L. How many L do 9 of them make in all? =
  11. 11.3/8 × 9 =
  12. 12.3/4 × 4/9 =
  13. 13.2/5 × 13 =
  14. 14.3.6 × 0.3 =
  15. 15.5/7 ÷ 5/6 =
  16. 16.8.8 × 0.5 =
  17. 17.0.4 × 0.6 =
  18. 18.5.9 × 0.5 =
  19. 19.1/8 × 11 =
  20. 20.8/9 ÷ 2/3 =
  21. 21.One bottle of oil holds 6.2 L. How many L do 12 of them make in all? =
  22. 22.1/3 × 1/5 =
  23. 23.4 ÷ 0.4 =
  24. 24.78.56 ÷ 8 =
  25. 25.One roll of ribbon has 6.6 m. How many m do 11 of them make in all? =
  26. 26.2.4 ÷ 2 =
  27. 27.1/2 ÷ 7/9 =
  28. 28.1/3 ÷ 5/9 =
  29. 29.2 ÷ 0.4 =
  30. 30.One packet of rice weighs 7.3 kg. How many kg do 11 of them make in all? =
  31. 31.1/4 × 6/7 =
  32. 32.2/5 × 11 =
  33. 33.3.2 ÷ 0.4 =
  34. 34.0.4 ÷ 0.2 =
  35. 35.7/9 × 3 =
  36. 36.1/6 ÷ 1/7 =
  37. 37.5.6 ÷ 0.7 =
  38. 38.4/5 × 14 =
  39. 39.3/4 ÷ 3/4 =
  40. 40.5/6 × 2 =

Answer key

  1. 16/45
  2. 1.35
  3. 25/7
  4. 5/9
  5. 65.8
  6. 40/9
  7. 45/8
  8. 1.34
  9. 24
  10. 76.5
  11. 27/8
  12. 1/3
  13. 26/5
  14. 1.08
  15. 6/7
  16. 4.4
  17. 0.24
  18. 2.95
  19. 11/8
  20. 4/3
  21. 74.4
  22. 1/15
  23. 10
  24. 9.82
  25. 72.6
  26. 1.2
  27. 9/14
  28. 3/5
  29. 5
  30. 80.3
  31. 3/14
  32. 22/5
  33. 8
  34. 2
  35. 7/3
  36. 7/6
  37. 8
  38. 56/5
  39. 1
  40. 5/3

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