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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 546 · 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. 1.7/9 ÷ 2/5 =
  2. 2.5/9 ÷ 3/5 =
  3. 3.8.2 × 0.2 =
  4. 4.2/3 × 4 =
  5. 5.8.8 ÷ 0.8 =
  6. 6.8/9 × 1/4 =
  7. 7.1/7 × 3/4 =
  8. 8.2/9 × 1/8 =
  9. 9.One packet of rice weighs 8.8 kg. How many kg do 5 of them make in all? =
  10. 10.3.5 ÷ 0.5 =
  11. 11.5/8 ÷ 2/5 =
  12. 12.8/9 ÷ 2/7 =
  13. 13.0.1 × 0.3 =
  14. 14.1/2 × 14 =
  15. 15.3/7 × 14 =
  16. 16.1/3 ÷ 2/3 =
  17. 17.5/7 ÷ 2/5 =
  18. 18.2/3 × 5 =
  19. 19.4/5 × 6/7 =
  20. 20.One bottle of oil holds 1.4 L. How many L do 4 of them make in all? =
  21. 21.1/4 × 1/8 =
  22. 22.1.6 ÷ 0.4 =
  23. 23.5.3 ÷ 2 =
  24. 24.30.9 ÷ 5 =
  25. 25.4.8 ÷ 0.8 =
  26. 26.1/8 × 11 =
  27. 27.6.9 × 0.7 =
  28. 28.3.6 ÷ 0.6 =
  29. 29.2/7 ÷ 2/5 =
  30. 30.5/7 ÷ 1/5 =
  31. 31.3 ÷ 0.5 =
  32. 32.8.1 × 0.7 =
  33. 33.0.9 ÷ 0.3 =
  34. 34.9.6 × 0.6 =
  35. 35.4.2 ÷ 0.7 =
  36. 36.77.52 ÷ 8 =
  37. 37.2/5 × 6/7 =
  38. 38.One jug of milk holds 2.9 L. How many L do 4 of them make in all? =
  39. 39.One packet of rice weighs 3.7 kg. How many kg do 5 of them make in all? =
  40. 40.5/7 × 14 =

Answer key

  1. 35/18
  2. 25/27
  3. 1.64
  4. 8/3
  5. 11
  6. 2/9
  7. 3/28
  8. 1/36
  9. 44
  10. 7
  11. 25/16
  12. 28/9
  13. 0.03
  14. 7
  15. 6
  16. 1/2
  17. 25/14
  18. 10/3
  19. 24/35
  20. 5.6
  21. 1/32
  22. 4
  23. 2.65
  24. 6.18
  25. 6
  26. 11/8
  27. 4.83
  28. 6
  29. 5/7
  30. 25/7
  31. 6
  32. 5.67
  33. 3
  34. 5.76
  35. 6
  36. 9.69
  37. 12/35
  38. 11.6
  39. 18.5
  40. 10

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