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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 35 · 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. 1.9.8 × 0.2 =
  2. 2.One bag of potatoes weighs 6.5 kg. How many kg do 5 of them make in all? =
  3. 3.5/8 ÷ 7/9 =
  4. 4.One jug of milk holds 6.6 L. How many L do 3 of them make in all? =
  5. 5.1/3 ÷ 2/3 =
  6. 6.1.9 × 0.4 =
  7. 7.One bag of potatoes weighs 7.2 kg. How many kg do 3 of them make in all? =
  8. 8.4.2 × 0.6 =
  9. 9.8 ÷ 0.8 =
  10. 10.4/7 × 5/6 =
  11. 11.2/5 × 15 =
  12. 12.4/7 × 1/8 =
  13. 13.6/7 × 12 =
  14. 14.One roll of ribbon has 2.8 m. How many m do 10 of them make in all? =
  15. 15.5/9 ÷ 1/3 =
  16. 16.5.4 × 0.5 =
  17. 17.1/4 × 15 =
  18. 18.6.1 × 0.6 =
  19. 19.7.7 ÷ 0.7 =
  20. 20.1/4 × 4 =
  21. 21.5/9 × 2/9 =
  22. 22.1/2 × 3/8 =
  23. 23.7/8 × 13 =
  24. 24.One jug of milk holds 8 L. How many L do 11 of them make in all? =
  25. 25.7.2 ÷ 0.6 =
  26. 26.8.4 × 0.7 =
  27. 27.2/5 ÷ 4/7 =
  28. 28.One packet of rice weighs 5.6 kg. How many kg do 3 of them make in all? =
  29. 29.1/3 × 4/7 =
  30. 30.6.25 ÷ 5 =
  31. 31.One packet of rice weighs 4.7 kg. How many kg do 5 of them make in all? =
  32. 32.2 ÷ 0.2 =
  33. 33.7/9 × 1/9 =
  34. 34.0.6 × 0.4 =
  35. 35.1/4 × 5/6 =
  36. 36.19.44 ÷ 2 =
  37. 37.5.2 × 0.8 =
  38. 38.1.2 ÷ 0.6 =
  39. 39.1.1 × 0.9 =
  40. 40.One bottle of oil holds 8.7 L. How many L do 4 of them make in all? =

Answer key

  1. 1.96
  2. 32.5
  3. 45/56
  4. 19.8
  5. 1/2
  6. 0.76
  7. 21.6
  8. 2.52
  9. 10
  10. 10/21
  11. 6
  12. 1/14
  13. 72/7
  14. 28
  15. 5/3
  16. 2.7
  17. 15/4
  18. 3.66
  19. 11
  20. 1
  21. 10/81
  22. 3/16
  23. 91/8
  24. 88
  25. 12
  26. 5.88
  27. 7/10
  28. 16.8
  29. 4/21
  30. 1.25
  31. 23.5
  32. 10
  33. 7/81
  34. 0.24
  35. 5/24
  36. 9.72
  37. 4.16
  38. 2
  39. 0.99
  40. 34.8

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