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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 523 · 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. 1.4/5 × 7/8 =
  2. 2.3/5 × 5/9 =
  3. 3.2/3 × 3 =
  4. 4.One jug of milk holds 5 L. How many L do 9 of them make in all? =
  5. 5.5/8 × 15 =
  6. 6.1.8 ÷ 0.9 =
  7. 7.1/3 ÷ 2/5 =
  8. 8.9.4 × 0.6 =
  9. 9.33.04 ÷ 8 =
  10. 10.3/8 × 3/8 =
  11. 11.One jug of milk holds 9.1 L. How many L do 3 of them make in all? =
  12. 12.5/7 × 5/6 =
  13. 13.0.6 ÷ 0.2 =
  14. 14.1/5 × 6 =
  15. 15.1/4 × 3 =
  16. 16.77.6 ÷ 8 =
  17. 17.10.96 ÷ 8 =
  18. 18.17.42 ÷ 2 =
  19. 19.8.5 × 0.3 =
  20. 20.11.1 ÷ 5 =
  21. 21.8/9 × 1/4 =
  22. 22.7/9 × 4 =
  23. 23.9.8 × 0.6 =
  24. 24.5/8 × 3 =
  25. 25.One bottle of oil holds 2.1 L. How many L do 2 of them make in all? =
  26. 26.2/5 × 7/9 =
  27. 27.4/9 × 1/7 =
  28. 28.7.3 × 0.3 =
  29. 29.29.1 ÷ 5 =
  30. 30.5/8 × 3/4 =
  31. 31.1/6 ÷ 1/4 =
  32. 32.2/3 × 4/5 =
  33. 33.One roll of ribbon has 1.6 m. How many m do 7 of them make in all? =
  34. 34.2.7 ÷ 0.3 =
  35. 35.1.4 ÷ 0.2 =
  36. 36.One jug of milk holds 1.6 L. How many L do 10 of them make in all? =
  37. 37.1/7 ÷ 5/6 =
  38. 38.1/3 × 14 =
  39. 39.5/6 ÷ 5/6 =
  40. 40.One bottle of oil holds 1.9 L. How many L do 3 of them make in all? =

Answer key

  1. 7/10
  2. 1/3
  3. 2
  4. 45
  5. 75/8
  6. 2
  7. 5/6
  8. 5.64
  9. 4.13
  10. 9/64
  11. 27.3
  12. 25/42
  13. 3
  14. 6/5
  15. 3/4
  16. 9.7
  17. 1.37
  18. 8.71
  19. 2.55
  20. 2.22
  21. 2/9
  22. 28/9
  23. 5.88
  24. 15/8
  25. 4.2
  26. 14/45
  27. 4/63
  28. 2.19
  29. 5.82
  30. 15/32
  31. 2/3
  32. 8/15
  33. 11.2
  34. 9
  35. 7
  36. 16
  37. 6/35
  38. 14/3
  39. 1
  40. 5.7

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