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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 525 · 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. 1.6/7 × 14 =
  2. 2.One packet of rice weighs 6.3 kg. How many kg do 12 of them make in all? =
  3. 3.5/6 × 7 =
  4. 4.3 ÷ 0.6 =
  5. 5.One packet of rice weighs 3.1 kg. How many kg do 8 of them make in all? =
  6. 6.5/9 ÷ 1/5 =
  7. 7.72 ÷ 8 =
  8. 8.22.24 ÷ 4 =
  9. 9.3.3 ÷ 0.3 =
  10. 10.7/8 × 2 =
  11. 11.35.44 ÷ 8 =
  12. 12.4/9 × 3 =
  13. 13.1/3 × 7 =
  14. 14.1.7 × 0.3 =
  15. 15.3/4 × 4/7 =
  16. 16.4/5 × 1/7 =
  17. 17.2.5 ÷ 0.5 =
  18. 18.One jug of milk holds 6.9 L. How many L do 11 of them make in all? =
  19. 19.2/3 × 3/5 =
  20. 20.2/3 × 1/3 =
  21. 21.1/3 × 9 =
  22. 22.16.72 ÷ 8 =
  23. 23.One packet of rice weighs 4.3 kg. How many kg do 6 of them make in all? =
  24. 24.8.9 × 0.2 =
  25. 25.5/8 × 3/5 =
  26. 26.18.92 ÷ 2 =
  27. 27.8.4 × 0.4 =
  28. 28.3.6 ÷ 0.3 =
  29. 29.1/9 × 5/7 =
  30. 30.3/8 ÷ 2/9 =
  31. 31.6.7 × 0.2 =
  32. 32.12.88 ÷ 2 =
  33. 33.3/4 × 7 =
  34. 34.1.8 ÷ 0.6 =
  35. 35.7.2 ÷ 0.9 =
  36. 36.1.8 ÷ 0.3 =
  37. 37.4/9 × 6 =
  38. 38.3/8 × 2/3 =
  39. 39.16.24 ÷ 2 =
  40. 40.One packet of rice weighs 9 kg. How many kg do 5 of them make in all? =

Answer key

  1. 12
  2. 75.6
  3. 35/6
  4. 5
  5. 24.8
  6. 25/9
  7. 9
  8. 5.56
  9. 11
  10. 7/4
  11. 4.43
  12. 4/3
  13. 7/3
  14. 0.51
  15. 3/7
  16. 4/35
  17. 5
  18. 75.9
  19. 2/5
  20. 2/9
  21. 3
  22. 2.09
  23. 25.8
  24. 1.78
  25. 3/8
  26. 9.46
  27. 3.36
  28. 12
  29. 5/63
  30. 27/16
  31. 1.34
  32. 6.44
  33. 21/4
  34. 3
  35. 8
  36. 6
  37. 8/3
  38. 1/4
  39. 8.12
  40. 45

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