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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 97 · 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. 1.4/9 ÷ 4/7 =
  2. 2.1 ÷ 0.2 =
  3. 3.6.56 ÷ 2 =
  4. 4.1/5 ÷ 2/7 =
  5. 5.5.1 × 0.5 =
  6. 6.One packet of rice weighs 1.3 kg. How many kg do 3 of them make in all? =
  7. 7.2/9 × 7 =
  8. 8.8.4 × 0.8 =
  9. 9.7.12 ÷ 2 =
  10. 10.5/9 × 3/8 =
  11. 11.4/5 ÷ 3/7 =
  12. 12.5.1 × 0.7 =
  13. 13.1/3 ÷ 8/9 =
  14. 14.2/7 × 7 =
  15. 15.2/5 × 10 =
  16. 16.1/7 × 1/8 =
  17. 17.9.1 × 0.2 =
  18. 18.1/4 ÷ 2/3 =
  19. 19.5/6 ÷ 7/8 =
  20. 20.8/9 × 3 =
  21. 21.3/4 × 4/9 =
  22. 22.1/7 ÷ 3/5 =
  23. 23.2.4 × 0.6 =
  24. 24.11.5 ÷ 5 =
  25. 25.4/7 × 3/5 =
  26. 26.One jug of milk holds 3.9 L. How many L do 11 of them make in all? =
  27. 27.4.8 × 0.2 =
  28. 28.4/9 × 9 =
  29. 29.2/7 × 4/9 =
  30. 30.1/4 ÷ 5/8 =
  31. 31.0.9 × 0.4 =
  32. 32.1/3 × 2/5 =
  33. 33.2.56 ÷ 2 =
  34. 34.2/5 ÷ 7/8 =
  35. 35.1/5 × 3/5 =
  36. 36.3.3 ÷ 0.3 =
  37. 37.1.2 × 0.3 =
  38. 38.1 ÷ 0.5 =
  39. 39.5/9 × 5/7 =
  40. 40.5/9 × 3 =

Answer key

  1. 7/9
  2. 5
  3. 3.28
  4. 7/10
  5. 2.55
  6. 3.9
  7. 14/9
  8. 6.72
  9. 3.56
  10. 5/24
  11. 28/15
  12. 3.57
  13. 3/8
  14. 2
  15. 4
  16. 1/56
  17. 1.82
  18. 3/8
  19. 20/21
  20. 8/3
  21. 1/3
  22. 5/21
  23. 1.44
  24. 2.3
  25. 12/35
  26. 42.9
  27. 0.96
  28. 4
  29. 8/63
  30. 2/5
  31. 0.36
  32. 2/15
  33. 1.28
  34. 16/35
  35. 3/25
  36. 11
  37. 0.36
  38. 2
  39. 25/63
  40. 5/3

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