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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 416 · 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 bottle of oil holds 8.5 L. How many L do 3 of them make in all? =
  2. 2.1/2 × 2/7 =
  3. 3.4.4 × 0.9 =
  4. 4.1/9 ÷ 2/9 =
  5. 5.1/3 ÷ 1/9 =
  6. 6.7.04 ÷ 4 =
  7. 7.5/7 × 1/7 =
  8. 8.16.16 ÷ 2 =
  9. 9.2/5 × 4 =
  10. 10.3.5 ÷ 0.5 =
  11. 11.1/8 × 1/4 =
  12. 12.1/8 ÷ 1/9 =
  13. 13.2/5 ÷ 1/4 =
  14. 14.5/9 × 4 =
  15. 15.One jug of milk holds 3.6 L. How many L do 4 of them make in all? =
  16. 16.1/4 × 4 =
  17. 17.6 ÷ 0.5 =
  18. 18.6.4 × 0.2 =
  19. 19.6/7 × 2 =
  20. 20.One roll of ribbon has 8 m. How many m do 4 of them make in all? =
  21. 21.One bottle of oil holds 6.3 L. How many L do 4 of them make in all? =
  22. 22.1/5 × 7/9 =
  23. 23.4/7 ÷ 5/9 =
  24. 24.2/3 × 7/8 =
  25. 25.5/6 × 12 =
  26. 26.5.2 × 0.3 =
  27. 27.1/5 × 1/9 =
  28. 28.8.8 ÷ 0.8 =
  29. 29.1/8 × 1/3 =
  30. 30.One bottle of oil holds 5.2 L. How many L do 5 of them make in all? =
  31. 31.2/9 ÷ 8/9 =
  32. 32.48.25 ÷ 5 =
  33. 33.One jug of milk holds 1.4 L. How many L do 4 of them make in all? =
  34. 34.1/8 × 3/8 =
  35. 35.1.8 ÷ 0.3 =
  36. 36.6.5 × 0.6 =
  37. 37.1/3 × 12 =
  38. 38.21.48 ÷ 4 =
  39. 39.1/3 ÷ 2/3 =
  40. 40.6.1 × 0.8 =

Answer key

  1. 25.5
  2. 1/7
  3. 3.96
  4. 1/2
  5. 3
  6. 1.76
  7. 5/49
  8. 8.08
  9. 8/5
  10. 7
  11. 1/32
  12. 9/8
  13. 8/5
  14. 20/9
  15. 14.4
  16. 1
  17. 12
  18. 1.28
  19. 12/7
  20. 32
  21. 25.2
  22. 7/45
  23. 36/35
  24. 7/12
  25. 10
  26. 1.56
  27. 1/45
  28. 11
  29. 1/24
  30. 26
  31. 1/4
  32. 9.65
  33. 5.6
  34. 3/64
  35. 6
  36. 3.9
  37. 4
  38. 5.37
  39. 1/2
  40. 4.88

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