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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 538 · 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. 1.6/7 ÷ 1/7 =
  2. 2.1/9 ÷ 3/7 =
  3. 3.One roll of ribbon has 1.9 m. How many m do 4 of them make in all? =
  4. 4.2/7 × 1/7 =
  5. 5.4/7 × 9 =
  6. 6.1/3 × 7 =
  7. 7.8.1 × 0.2 =
  8. 8.4/9 × 2/5 =
  9. 9.2/9 ÷ 3/5 =
  10. 10.7.2 ÷ 0.6 =
  11. 11.36.25 ÷ 5 =
  12. 12.3.2 ÷ 0.4 =
  13. 13.25.6 ÷ 4 =
  14. 14.52.4 ÷ 8 =
  15. 15.8.3 × 0.4 =
  16. 16.4.2 ÷ 0.7 =
  17. 17.1.5 ÷ 0.5 =
  18. 18.66.64 ÷ 8 =
  19. 19.One jug of milk holds 9.3 L. How many L do 8 of them make in all? =
  20. 20.One roll of ribbon has 1.5 m. How many m do 7 of them make in all? =
  21. 21.7/9 × 9 =
  22. 22.1/2 × 3 =
  23. 23.1.2 × 0.8 =
  24. 24.2/5 × 10 =
  25. 25.7/8 ÷ 6/7 =
  26. 26.1/3 ÷ 3/7 =
  27. 27.4/7 ÷ 1/4 =
  28. 28.One bag of potatoes weighs 1.4 kg. How many kg do 7 of them make in all? =
  29. 29.7/9 × 8/9 =
  30. 30.5/8 ÷ 1/4 =
  31. 31.9.2 × 0.8 =
  32. 32.2/3 × 14 =
  33. 33.One bottle of oil holds 9.1 L. How many L do 5 of them make in all? =
  34. 34.3.3 ÷ 2 =
  35. 35.2.54 ÷ 2 =
  36. 36.5/7 × 11 =
  37. 37.One jug of milk holds 4.1 L. How many L do 9 of them make in all? =
  38. 38.8.8 × 0.9 =
  39. 39.5/9 ÷ 1/7 =
  40. 40.3/5 × 3 =

Answer key

  1. 6
  2. 7/27
  3. 7.6
  4. 2/49
  5. 36/7
  6. 7/3
  7. 1.62
  8. 8/45
  9. 10/27
  10. 12
  11. 7.25
  12. 8
  13. 6.4
  14. 6.55
  15. 3.32
  16. 6
  17. 3
  18. 8.33
  19. 74.4
  20. 10.5
  21. 7
  22. 3/2
  23. 0.96
  24. 4
  25. 49/48
  26. 7/9
  27. 16/7
  28. 9.8
  29. 56/81
  30. 5/2
  31. 7.36
  32. 28/3
  33. 45.5
  34. 1.65
  35. 1.27
  36. 55/7
  37. 36.9
  38. 7.92
  39. 35/9
  40. 9/5

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