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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 516 · 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. 1.3/8 × 15 =
  2. 2.5/9 ÷ 3/4 =
  3. 3.2.22 ÷ 2 =
  4. 4.2.88 ÷ 2 =
  5. 5.5/6 × 4/5 =
  6. 6.7/8 ÷ 3/4 =
  7. 7.3/5 × 14 =
  8. 8.1.2 ÷ 0.6 =
  9. 9.4/9 × 2/9 =
  10. 10.2/7 × 4 =
  11. 11.5/6 × 10 =
  12. 12.4/9 ÷ 2/5 =
  13. 13.4/5 ÷ 2/9 =
  14. 14.5/9 × 6 =
  15. 15.5/7 ÷ 7/9 =
  16. 16.12.32 ÷ 8 =
  17. 17.One bottle of oil holds 3.6 L. How many L do 12 of them make in all? =
  18. 18.42 ÷ 5 =
  19. 19.1/5 × 11 =
  20. 20.One bag of potatoes weighs 3.8 kg. How many kg do 9 of them make in all? =
  21. 21.4/9 × 8 =
  22. 22.0.2 × 0.2 =
  23. 23.4/7 × 2/7 =
  24. 24.1/5 × 4 =
  25. 25.One roll of ribbon has 6.1 m. How many m do 7 of them make in all? =
  26. 26.3/5 × 1/4 =
  27. 27.5/8 ÷ 4/7 =
  28. 28.32.32 ÷ 8 =
  29. 29.18.78 ÷ 2 =
  30. 30.1.8 ÷ 0.6 =
  31. 31.7.2 × 0.5 =
  32. 32.1.4 ÷ 0.2 =
  33. 33.One roll of ribbon has 5.1 m. How many m do 9 of them make in all? =
  34. 34.0.8 ÷ 0.2 =
  35. 35.26.2 ÷ 4 =
  36. 36.0.6 ÷ 0.3 =
  37. 37.1/7 × 5 =
  38. 38.6/7 × 14 =
  39. 39.3.2 × 0.9 =
  40. 40.4/9 × 7/8 =

Answer key

  1. 45/8
  2. 20/27
  3. 1.11
  4. 1.44
  5. 2/3
  6. 7/6
  7. 42/5
  8. 2
  9. 8/81
  10. 8/7
  11. 25/3
  12. 10/9
  13. 18/5
  14. 10/3
  15. 45/49
  16. 1.54
  17. 43.2
  18. 8.4
  19. 11/5
  20. 34.2
  21. 32/9
  22. 0.04
  23. 8/49
  24. 4/5
  25. 42.7
  26. 3/20
  27. 35/32
  28. 4.04
  29. 9.39
  30. 3
  31. 3.6
  32. 7
  33. 45.9
  34. 4
  35. 6.55
  36. 2
  37. 5/7
  38. 12
  39. 2.88
  40. 7/18

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