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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 184 · 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. 1.5/6 × 1/9 =
  2. 2.2/9 ÷ 1/4 =
  3. 3.7/9 × 8 =
  4. 4.One roll of ribbon has 3.3 m. How many m do 9 of them make in all? =
  5. 5.3/4 × 15 =
  6. 6.3.6 ÷ 0.3 =
  7. 7.12.58 ÷ 2 =
  8. 8.60.08 ÷ 8 =
  9. 9.1/7 ÷ 8/9 =
  10. 10.2/5 × 8 =
  11. 11.26.32 ÷ 4 =
  12. 12.26.56 ÷ 4 =
  13. 13.10.8 ÷ 0.9 =
  14. 14.1/5 × 4 =
  15. 15.1.1 × 0.2 =
  16. 16.4/5 ÷ 1/6 =
  17. 17.2.7 ÷ 0.9 =
  18. 18.1/2 × 5/7 =
  19. 19.34.48 ÷ 8 =
  20. 20.8.68 ÷ 2 =
  21. 21.5.3 × 0.2 =
  22. 22.1/8 ÷ 2/5 =
  23. 23.14.75 ÷ 5 =
  24. 24.1/2 × 15 =
  25. 25.37.28 ÷ 8 =
  26. 26.1.6 × 0.2 =
  27. 27.5/7 × 4 =
  28. 28.One roll of ribbon has 3.8 m. How many m do 8 of them make in all? =
  29. 29.2/5 ÷ 1/3 =
  30. 30.3.2 ÷ 0.8 =
  31. 31.4/7 × 2/3 =
  32. 32.8/9 × 15 =
  33. 33.7/9 × 4/9 =
  34. 34.38.75 ÷ 5 =
  35. 35.1/6 × 7 =
  36. 36.3/7 ÷ 1/9 =
  37. 37.5.28 ÷ 8 =
  38. 38.One packet of rice weighs 4.4 kg. How many kg do 12 of them make in all? =
  39. 39.0.2 × 0.5 =
  40. 40.2/7 ÷ 6/7 =

Answer key

  1. 5/54
  2. 8/9
  3. 56/9
  4. 29.7
  5. 45/4
  6. 12
  7. 6.29
  8. 7.51
  9. 9/56
  10. 16/5
  11. 6.58
  12. 6.64
  13. 12
  14. 4/5
  15. 0.22
  16. 24/5
  17. 3
  18. 5/14
  19. 4.31
  20. 4.34
  21. 1.06
  22. 5/16
  23. 2.95
  24. 15/2
  25. 4.66
  26. 0.32
  27. 20/7
  28. 30.4
  29. 6/5
  30. 4
  31. 8/21
  32. 40/3
  33. 28/81
  34. 7.75
  35. 7/6
  36. 27/7
  37. 0.66
  38. 52.8
  39. 0.1
  40. 1/3

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