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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 324 · 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. 1.0.6 × 0.3 =
  2. 2.4/9 ÷ 5/9 =
  3. 3.One bottle of oil holds 1.4 L. How many L do 5 of them make in all? =
  4. 4.7.5 × 0.6 =
  5. 5.1/7 × 1/3 =
  6. 6.3/8 ÷ 1/4 =
  7. 7.One bag of potatoes weighs 5.7 kg. How many kg do 10 of them make in all? =
  8. 8.3/5 × 15 =
  9. 9.1.2 × 0.4 =
  10. 10.One jug of milk holds 1.3 L. How many L do 7 of them make in all? =
  11. 11.6/7 × 15 =
  12. 12.1/9 × 14 =
  13. 13.One jug of milk holds 4.8 L. How many L do 9 of them make in all? =
  14. 14.12.62 ÷ 2 =
  15. 15.4/5 × 10 =
  16. 16.1/4 × 11 =
  17. 17.2/9 × 1/5 =
  18. 18.8.26 ÷ 2 =
  19. 19.One jug of milk holds 1.6 L. How many L do 6 of them make in all? =
  20. 20.6/7 × 4/7 =
  21. 21.5/7 × 4/9 =
  22. 22.1/3 × 1/5 =
  23. 23.2/3 ÷ 2/5 =
  24. 24.1 ÷ 0.2 =
  25. 25.5/8 ÷ 6/7 =
  26. 26.8/9 ÷ 2/9 =
  27. 27.2/3 × 2/5 =
  28. 28.One roll of ribbon has 1.2 m. How many m do 9 of them make in all? =
  29. 29.7/9 ÷ 3/5 =
  30. 30.7.2 ÷ 0.8 =
  31. 31.1/7 ÷ 1/2 =
  32. 32.3.7 × 0.4 =
  33. 33.6.08 ÷ 8 =
  34. 34.4/9 ÷ 1/8 =
  35. 35.1/7 × 3/8 =
  36. 36.17.82 ÷ 2 =
  37. 37.7/8 × 4/7 =
  38. 38.One bottle of oil holds 8.8 L. How many L do 10 of them make in all? =
  39. 39.19.45 ÷ 5 =
  40. 40.4/9 ÷ 1/9 =

Answer key

  1. 0.18
  2. 4/5
  3. 7
  4. 4.5
  5. 1/21
  6. 3/2
  7. 57
  8. 9
  9. 0.48
  10. 9.1
  11. 90/7
  12. 14/9
  13. 43.2
  14. 6.31
  15. 8
  16. 11/4
  17. 2/45
  18. 4.13
  19. 9.6
  20. 24/49
  21. 20/63
  22. 1/15
  23. 5/3
  24. 5
  25. 35/48
  26. 4
  27. 4/15
  28. 10.8
  29. 35/27
  30. 9
  31. 2/7
  32. 1.48
  33. 0.76
  34. 32/9
  35. 3/56
  36. 8.91
  37. 1/2
  38. 88
  39. 3.89
  40. 4

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