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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 257 · 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.One jug of milk holds 3 L. How many L do 9 of them make in all? =
  2. 2.One bag of potatoes weighs 9.5 kg. How many kg do 4 of them make in all? =
  3. 3.5/9 × 5 =
  4. 4.23.96 ÷ 4 =
  5. 5.4/9 × 1/3 =
  6. 6.1/4 ÷ 5/7 =
  7. 7.1/8 × 9 =
  8. 8.0.9 × 0.3 =
  9. 9.3.7 × 0.8 =
  10. 10.7/8 ÷ 3/8 =
  11. 11.43.15 ÷ 5 =
  12. 12.1/2 × 2 =
  13. 13.1 ÷ 0.2 =
  14. 14.7/9 × 4 =
  15. 15.4.3 × 0.8 =
  16. 16.4.4 × 0.3 =
  17. 17.3/5 ÷ 3/5 =
  18. 18.8.8 ÷ 0.8 =
  19. 19.1/9 ÷ 1/5 =
  20. 20.0.5 × 0.5 =
  21. 21.1/6 × 14 =
  22. 22.3/4 ÷ 1/8 =
  23. 23.1/2 × 2/3 =
  24. 24.0.6 ÷ 0.3 =
  25. 25.3/7 × 15 =
  26. 26.7.9 × 0.7 =
  27. 27.2.1 ÷ 0.7 =
  28. 28.5.4 ÷ 0.6 =
  29. 29.58.56 ÷ 8 =
  30. 30.2/9 ÷ 3/5 =
  31. 31.6.6 × 0.5 =
  32. 32.One jug of milk holds 9.8 L. How many L do 2 of them make in all? =
  33. 33.0.4 ÷ 0.2 =
  34. 34.One roll of ribbon has 8.1 m. How many m do 9 of them make in all? =
  35. 35.2/7 ÷ 1/3 =
  36. 36.0.2 × 0.7 =
  37. 37.0.9 × 0.5 =
  38. 38.3/4 × 1/5 =
  39. 39.One bag of potatoes weighs 1.9 kg. How many kg do 9 of them make in all? =
  40. 40.1.8 × 0.9 =

Answer key

  1. 27
  2. 38
  3. 25/9
  4. 5.99
  5. 4/27
  6. 7/20
  7. 9/8
  8. 0.27
  9. 2.96
  10. 7/3
  11. 8.63
  12. 1
  13. 5
  14. 28/9
  15. 3.44
  16. 1.32
  17. 1
  18. 11
  19. 5/9
  20. 0.25
  21. 7/3
  22. 6
  23. 1/3
  24. 2
  25. 45/7
  26. 5.53
  27. 3
  28. 9
  29. 7.32
  30. 10/27
  31. 3.3
  32. 19.6
  33. 2
  34. 72.9
  35. 6/7
  36. 0.14
  37. 0.45
  38. 3/20
  39. 17.1
  40. 1.62

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