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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 61 · 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. 1.1/6 × 6 =
  2. 2.One jug of milk holds 3.6 L. How many L do 5 of them make in all? =
  3. 3.3/4 × 1/2 =
  4. 4.One bottle of oil holds 2.1 L. How many L do 4 of them make in all? =
  5. 5.5/7 × 15 =
  6. 6.2/3 × 1/4 =
  7. 7.6.6 × 0.9 =
  8. 8.2/5 × 1/8 =
  9. 9.5/8 × 10 =
  10. 10.3/8 ÷ 3/4 =
  11. 11.4/5 × 15 =
  12. 12.1 ÷ 0.5 =
  13. 13.One bag of potatoes weighs 3.9 kg. How many kg do 5 of them make in all? =
  14. 14.5.9 × 0.5 =
  15. 15.2/9 × 2 =
  16. 16.2/3 × 4/7 =
  17. 17.1.6 ÷ 0.2 =
  18. 18.17.08 ÷ 2 =
  19. 19.2.1 ÷ 0.7 =
  20. 20.4/5 × 4 =
  21. 21.1/3 ÷ 6/7 =
  22. 22.8/9 × 14 =
  23. 23.One bottle of oil holds 6.4 L. How many L do 4 of them make in all? =
  24. 24.One roll of ribbon has 6.9 m. How many m do 2 of them make in all? =
  25. 25.5/7 ÷ 2/9 =
  26. 26.One jug of milk holds 4.9 L. How many L do 10 of them make in all? =
  27. 27.3/5 × 4 =
  28. 28.0.4 ÷ 0.2 =
  29. 29.7/9 × 11 =
  30. 30.1/7 × 3/5 =
  31. 31.5/6 × 8 =
  32. 32.0.8 ÷ 0.2 =
  33. 33.One packet of rice weighs 1.3 kg. How many kg do 12 of them make in all? =
  34. 34.1/7 ÷ 1/6 =
  35. 35.One bottle of oil holds 2.8 L. How many L do 6 of them make in all? =
  36. 36.1/2 × 1/6 =
  37. 37.3/5 × 1/8 =
  38. 38.4.38 ÷ 2 =
  39. 39.5/8 ÷ 4/9 =
  40. 40.4.9 × 0.4 =

Answer key

  1. 1
  2. 18
  3. 3/8
  4. 8.4
  5. 75/7
  6. 1/6
  7. 5.94
  8. 1/20
  9. 25/4
  10. 1/2
  11. 12
  12. 2
  13. 19.5
  14. 2.95
  15. 4/9
  16. 8/21
  17. 8
  18. 8.54
  19. 3
  20. 16/5
  21. 7/18
  22. 112/9
  23. 25.6
  24. 13.8
  25. 45/14
  26. 49
  27. 12/5
  28. 2
  29. 77/9
  30. 3/35
  31. 20/3
  32. 4
  33. 15.6
  34. 6/7
  35. 16.8
  36. 1/12
  37. 3/40
  38. 2.19
  39. 45/32
  40. 1.96

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