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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 328 · 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 ÷ 2/3 =
  2. 2.8.6 × 0.4 =
  3. 3.8/9 × 11 =
  4. 4.7/9 × 7/8 =
  5. 5.17.04 ÷ 4 =
  6. 6.6.1 × 0.4 =
  7. 7.3.3 × 0.4 =
  8. 8.4/7 ÷ 2/3 =
  9. 9.6.4 × 0.6 =
  10. 10.5/8 × 3/4 =
  11. 11.1.8 ÷ 0.6 =
  12. 12.3/8 × 2/3 =
  13. 13.8/9 ÷ 1/4 =
  14. 14.8/9 × 13 =
  15. 15.5/7 × 1/3 =
  16. 16.10.9 ÷ 5 =
  17. 17.0.8 ÷ 0.2 =
  18. 18.3/7 × 5/7 =
  19. 19.22.08 ÷ 4 =
  20. 20.2/3 ÷ 5/8 =
  21. 21.7.3 × 0.6 =
  22. 22.1/5 × 8 =
  23. 23.8.94 ÷ 2 =
  24. 24.9.9 × 0.5 =
  25. 25.2/5 ÷ 7/9 =
  26. 26.1/9 × 1/8 =
  27. 27.23.64 ÷ 4 =
  28. 28.2/5 × 2/9 =
  29. 29.1.5 ÷ 0.3 =
  30. 30.1/8 × 5/9 =
  31. 31.2/5 × 4 =
  32. 32.7.2 × 0.8 =
  33. 33.One packet of rice weighs 4.2 kg. How many kg do 4 of them make in all? =
  34. 34.5/8 × 3 =
  35. 35.3.9 × 0.8 =
  36. 36.5.5 ÷ 0.5 =
  37. 37.One roll of ribbon has 4.9 m. How many m do 7 of them make in all? =
  38. 38.9.48 ÷ 4 =
  39. 39.2.4 × 0.5 =
  40. 40.11.42 ÷ 2 =

Answer key

  1. 1/2
  2. 3.44
  3. 88/9
  4. 49/72
  5. 4.26
  6. 2.44
  7. 1.32
  8. 6/7
  9. 3.84
  10. 15/32
  11. 3
  12. 1/4
  13. 32/9
  14. 104/9
  15. 5/21
  16. 2.18
  17. 4
  18. 15/49
  19. 5.52
  20. 16/15
  21. 4.38
  22. 8/5
  23. 4.47
  24. 4.95
  25. 18/35
  26. 1/72
  27. 5.91
  28. 4/45
  29. 5
  30. 5/72
  31. 8/5
  32. 5.76
  33. 16.8
  34. 15/8
  35. 3.12
  36. 11
  37. 34.3
  38. 2.37
  39. 1.2
  40. 5.71

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