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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 330 · 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. 1.2.7 ÷ 0.3 =
  2. 2.5/6 × 3/7 =
  3. 3.One jug of milk holds 9.1 L. How many L do 2 of them make in all? =
  4. 4.1/4 × 5/6 =
  5. 5.8.4 × 0.4 =
  6. 6.2.1 × 0.3 =
  7. 7.One bottle of oil holds 8.6 L. How many L do 4 of them make in all? =
  8. 8.42.24 ÷ 8 =
  9. 9.1.2 ÷ 0.4 =
  10. 10.7/9 × 7 =
  11. 11.2.4 ÷ 0.6 =
  12. 12.One packet of rice weighs 7.6 kg. How many kg do 8 of them make in all? =
  13. 13.5/6 × 4 =
  14. 14.3/7 × 11 =
  15. 15.5/8 ÷ 2/5 =
  16. 16.4.7 × 0.3 =
  17. 17.One bottle of oil holds 2 L. How many L do 10 of them make in all? =
  18. 18.0.8 × 0.4 =
  19. 19.1/5 × 12 =
  20. 20.1/2 × 5/7 =
  21. 21.4/9 × 5 =
  22. 22.1/3 × 1/3 =
  23. 23.3/5 × 3/7 =
  24. 24.2/7 ÷ 3/7 =
  25. 25.2/7 ÷ 1/5 =
  26. 26.68.72 ÷ 8 =
  27. 27.1/8 ÷ 1/8 =
  28. 28.1/4 ÷ 1/6 =
  29. 29.One bag of potatoes weighs 9.2 kg. How many kg do 9 of them make in all? =
  30. 30.2.7 ÷ 0.9 =
  31. 31.18.48 ÷ 8 =
  32. 32.6.75 ÷ 5 =
  33. 33.5.5 ÷ 0.5 =
  34. 34.0.2 × 0.5 =
  35. 35.2/3 × 14 =
  36. 36.2/5 ÷ 7/8 =
  37. 37.7/9 × 5/6 =
  38. 38.0.6 ÷ 0.3 =
  39. 39.2/3 × 4 =
  40. 40.8.9 × 0.2 =

Answer key

  1. 9
  2. 5/14
  3. 18.2
  4. 5/24
  5. 3.36
  6. 0.63
  7. 34.4
  8. 5.28
  9. 3
  10. 49/9
  11. 4
  12. 60.8
  13. 10/3
  14. 33/7
  15. 25/16
  16. 1.41
  17. 20
  18. 0.32
  19. 12/5
  20. 5/14
  21. 20/9
  22. 1/9
  23. 9/35
  24. 2/3
  25. 10/7
  26. 8.59
  27. 1
  28. 3/2
  29. 82.8
  30. 3
  31. 2.31
  32. 1.35
  33. 11
  34. 0.1
  35. 28/3
  36. 16/35
  37. 35/54
  38. 2
  39. 8/3
  40. 1.78

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