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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 165 · 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. 1.9.88 ÷ 4 =
  2. 2.3/7 ÷ 7/8 =
  3. 3.5.35 ÷ 5 =
  4. 4.1.2 ÷ 0.6 =
  5. 5.One roll of ribbon has 1.4 m. How many m do 12 of them make in all? =
  6. 6.19.3 ÷ 2 =
  7. 7.One roll of ribbon has 4.6 m. How many m do 11 of them make in all? =
  8. 8.4.4 ÷ 0.4 =
  9. 9.1/2 ÷ 2/3 =
  10. 10.5/6 × 11 =
  11. 11.1.8 ÷ 0.3 =
  12. 12.2/9 × 7 =
  13. 13.1/5 × 8 =
  14. 14.9.3 × 0.3 =
  15. 15.0.2 × 0.6 =
  16. 16.One jug of milk holds 5.2 L. How many L do 2 of them make in all? =
  17. 17.1/4 ÷ 3/4 =
  18. 18.One packet of rice weighs 8.2 kg. How many kg do 8 of them make in all? =
  19. 19.One bottle of oil holds 4.1 L. How many L do 12 of them make in all? =
  20. 20.8/9 × 7 =
  21. 21.0.1 × 0.9 =
  22. 22.1/7 × 3 =
  23. 23.3/4 × 8 =
  24. 24.4/7 × 14 =
  25. 25.1/9 × 5/8 =
  26. 26.7/9 × 2/9 =
  27. 27.4/9 × 7 =
  28. 28.1/8 ÷ 1/9 =
  29. 29.One roll of ribbon has 4.8 m. How many m do 3 of them make in all? =
  30. 30.0.26 ÷ 2 =
  31. 31.9.7 × 0.2 =
  32. 32.3.2 ÷ 0.4 =
  33. 33.4/7 ÷ 1/3 =
  34. 34.7.7 ÷ 0.7 =
  35. 35.One packet of rice weighs 2.3 kg. How many kg do 11 of them make in all? =
  36. 36.One jug of milk holds 6.3 L. How many L do 6 of them make in all? =
  37. 37.2.1 ÷ 0.7 =
  38. 38.35.4 ÷ 5 =
  39. 39.7.92 ÷ 8 =
  40. 40.One bottle of oil holds 9.9 L. How many L do 10 of them make in all? =

Answer key

  1. 2.47
  2. 24/49
  3. 1.07
  4. 2
  5. 16.8
  6. 9.65
  7. 50.6
  8. 11
  9. 3/4
  10. 55/6
  11. 6
  12. 14/9
  13. 8/5
  14. 2.79
  15. 0.12
  16. 10.4
  17. 1/3
  18. 65.6
  19. 49.2
  20. 56/9
  21. 0.09
  22. 3/7
  23. 6
  24. 8
  25. 5/72
  26. 14/81
  27. 28/9
  28. 9/8
  29. 14.4
  30. 0.13
  31. 1.94
  32. 8
  33. 12/7
  34. 11
  35. 25.3
  36. 37.8
  37. 3
  38. 7.08
  39. 0.99
  40. 99

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