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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 95 · 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. 1.1/3 × 5/9 =
  2. 2.6.4 ÷ 0.8 =
  3. 3.5/9 × 3 =
  4. 4.5/7 × 8/9 =
  5. 5.31.84 ÷ 4 =
  6. 6.55.12 ÷ 8 =
  7. 7.4/9 ÷ 1/2 =
  8. 8.4/7 ÷ 6/7 =
  9. 9.One bottle of oil holds 7.3 L. How many L do 6 of them make in all? =
  10. 10.1.1 × 0.8 =
  11. 11.4/7 ÷ 3/5 =
  12. 12.3/4 × 7 =
  13. 13.3/5 × 12 =
  14. 14.5/6 ÷ 3/5 =
  15. 15.9.2 ÷ 2 =
  16. 16.One jug of milk holds 7.1 L. How many L do 4 of them make in all? =
  17. 17.2 ÷ 0.4 =
  18. 18.7/8 × 7 =
  19. 19.29.9 ÷ 5 =
  20. 20.3.5 ÷ 0.5 =
  21. 21.1/2 ÷ 3/5 =
  22. 22.2/7 ÷ 2/7 =
  23. 23.3.82 ÷ 2 =
  24. 24.One roll of ribbon has 3.1 m. How many m do 10 of them make in all? =
  25. 25.3.9 × 0.2 =
  26. 26.1/9 × 3/7 =
  27. 27.7/9 ÷ 3/7 =
  28. 28.5/7 × 10 =
  29. 29.2.2 ÷ 0.2 =
  30. 30.1.7 × 0.3 =
  31. 31.4/9 × 2/5 =
  32. 32.5/6 ÷ 7/9 =
  33. 33.2/9 × 3/4 =
  34. 34.8.1 ÷ 0.9 =
  35. 35.2/7 × 6 =
  36. 36.1/2 × 12 =
  37. 37.6/7 × 3/7 =
  38. 38.One packet of rice weighs 9.3 kg. How many kg do 9 of them make in all? =
  39. 39.1.4 ÷ 0.7 =
  40. 40.5/8 × 4 =

Answer key

  1. 5/27
  2. 8
  3. 5/3
  4. 40/63
  5. 7.96
  6. 6.89
  7. 8/9
  8. 2/3
  9. 43.8
  10. 0.88
  11. 20/21
  12. 21/4
  13. 36/5
  14. 25/18
  15. 4.6
  16. 28.4
  17. 5
  18. 49/8
  19. 5.98
  20. 7
  21. 5/6
  22. 1
  23. 1.91
  24. 31
  25. 0.78
  26. 1/21
  27. 49/27
  28. 50/7
  29. 11
  30. 0.51
  31. 8/45
  32. 15/14
  33. 1/6
  34. 9
  35. 12/7
  36. 6
  37. 18/49
  38. 83.7
  39. 2
  40. 5/2

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