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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 493 · 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. 1.1/2 ÷ 5/9 =
  2. 2.2/9 ÷ 4/7 =
  3. 3.8.44 ÷ 4 =
  4. 4.2/7 × 1/4 =
  5. 5.8 ÷ 0.8 =
  6. 6.One roll of ribbon has 4.9 m. How many m do 5 of them make in all? =
  7. 7.8.6 × 0.9 =
  8. 8.2 ÷ 0.4 =
  9. 9.2/7 × 15 =
  10. 10.One bottle of oil holds 8.5 L. How many L do 6 of them make in all? =
  11. 11.5/9 × 4/7 =
  12. 12.12.72 ÷ 8 =
  13. 13.3.1 × 0.6 =
  14. 14.5/6 × 1/8 =
  15. 15.3.6 ÷ 8 =
  16. 16.One roll of ribbon has 5.4 m. How many m do 4 of them make in all? =
  17. 17.5/6 × 4 =
  18. 18.One jug of milk holds 8.1 L. How many L do 4 of them make in all? =
  19. 19.3/5 ÷ 2/7 =
  20. 20.3/4 × 2 =
  21. 21.One bottle of oil holds 1.9 L. How many L do 4 of them make in all? =
  22. 22.1/6 × 1/2 =
  23. 23.One packet of rice weighs 7.4 kg. How many kg do 9 of them make in all? =
  24. 24.6 ÷ 0.5 =
  25. 25.1.2 ÷ 0.2 =
  26. 26.7/8 × 7 =
  27. 27.1.7 × 0.4 =
  28. 28.6/7 × 1/8 =
  29. 29.1/4 × 13 =
  30. 30.3/5 ÷ 1/2 =
  31. 31.5.7 ÷ 5 =
  32. 32.1.6 ÷ 0.4 =
  33. 33.One bag of potatoes weighs 1.8 kg. How many kg do 9 of them make in all? =
  34. 34.1/3 × 5/6 =
  35. 35.28.44 ÷ 4 =
  36. 36.6 ÷ 0.6 =
  37. 37.4/5 × 4 =
  38. 38.2/3 × 15 =
  39. 39.19.92 ÷ 2 =
  40. 40.5/7 ÷ 7/9 =

Answer key

  1. 9/10
  2. 7/18
  3. 2.11
  4. 1/14
  5. 10
  6. 24.5
  7. 7.74
  8. 5
  9. 30/7
  10. 51
  11. 20/63
  12. 1.59
  13. 1.86
  14. 5/48
  15. 0.45
  16. 21.6
  17. 10/3
  18. 32.4
  19. 21/10
  20. 3/2
  21. 7.6
  22. 1/12
  23. 66.6
  24. 12
  25. 6
  26. 49/8
  27. 0.68
  28. 3/28
  29. 13/4
  30. 6/5
  31. 1.14
  32. 4
  33. 16.2
  34. 5/18
  35. 7.11
  36. 10
  37. 16/5
  38. 10
  39. 9.96
  40. 45/49

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