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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 409 · 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. 1.37.15 ÷ 5 =
  2. 2.9.2 ÷ 4 =
  3. 3.4/7 × 5 =
  4. 4.3/4 × 5 =
  5. 5.One packet of rice weighs 4.7 kg. How many kg do 7 of them make in all? =
  6. 6.One bag of potatoes weighs 7.9 kg. How many kg do 12 of them make in all? =
  7. 7.6/7 × 5/6 =
  8. 8.1/4 × 5 =
  9. 9.1/9 × 4 =
  10. 10.6.8 × 0.5 =
  11. 11.3/5 × 2/9 =
  12. 12.3/7 ÷ 5/7 =
  13. 13.4 ÷ 0.5 =
  14. 14.2/7 ÷ 5/6 =
  15. 15.1/7 × 3 =
  16. 16.1/7 × 1/8 =
  17. 17.1.2 ÷ 0.6 =
  18. 18.0.6 ÷ 0.2 =
  19. 19.4/7 × 1/4 =
  20. 20.5.5 × 0.8 =
  21. 21.5.6 × 0.4 =
  22. 22.7.2 × 0.3 =
  23. 23.2/3 × 1/8 =
  24. 24.7/9 ÷ 2/5 =
  25. 25.5 ÷ 0.5 =
  26. 26.1/8 × 1/4 =
  27. 27.3 ÷ 0.5 =
  28. 28.1/7 × 9 =
  29. 29.2/3 × 4/7 =
  30. 30.12.66 ÷ 2 =
  31. 31.0.8 ÷ 0.2 =
  32. 32.3/5 × 15 =
  33. 33.5.4 ÷ 0.9 =
  34. 34.2/9 ÷ 1/7 =
  35. 35.3/5 × 2 =
  36. 36.3/8 ÷ 1/7 =
  37. 37.17.84 ÷ 4 =
  38. 38.1/4 × 1/4 =
  39. 39.1/4 × 4/9 =
  40. 40.1/2 ÷ 3/5 =

Answer key

  1. 7.43
  2. 2.3
  3. 20/7
  4. 15/4
  5. 32.9
  6. 94.8
  7. 5/7
  8. 5/4
  9. 4/9
  10. 3.4
  11. 2/15
  12. 3/5
  13. 8
  14. 12/35
  15. 3/7
  16. 1/56
  17. 2
  18. 3
  19. 1/7
  20. 4.4
  21. 2.24
  22. 2.16
  23. 1/12
  24. 35/18
  25. 10
  26. 1/32
  27. 6
  28. 9/7
  29. 8/21
  30. 6.33
  31. 4
  32. 9
  33. 6
  34. 14/9
  35. 6/5
  36. 21/8
  37. 4.46
  38. 1/16
  39. 1/9
  40. 5/6

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