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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 482 · 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. 1.0.88 ÷ 8 =
  2. 2.4/5 × 1/9 =
  3. 3.1.6 ÷ 0.8 =
  4. 4.3/5 × 7 =
  5. 5.1.8 ÷ 0.6 =
  6. 6.7/8 × 7 =
  7. 7.4/9 × 1/9 =
  8. 8.5/8 × 6 =
  9. 9.3 ÷ 0.5 =
  10. 10.1.2 ÷ 0.3 =
  11. 11.2/9 ÷ 8/9 =
  12. 12.One packet of rice weighs 7.7 kg. How many kg do 2 of them make in all? =
  13. 13.26.96 ÷ 4 =
  14. 14.6/7 ÷ 4/5 =
  15. 15.One jug of milk holds 5.2 L. How many L do 5 of them make in all? =
  16. 16.8.98 ÷ 2 =
  17. 17.1/7 × 7 =
  18. 18.One bottle of oil holds 7 L. How many L do 12 of them make in all? =
  19. 19.3/5 × 6 =
  20. 20.One packet of rice weighs 1.3 kg. How many kg do 11 of them make in all? =
  21. 21.4/9 × 15 =
  22. 22.2/3 × 2/3 =
  23. 23.6.7 × 0.5 =
  24. 24.2/3 × 8 =
  25. 25.2.4 ÷ 0.8 =
  26. 26.3.7 × 0.9 =
  27. 27.8/9 × 9 =
  28. 28.5.5 ÷ 2 =
  29. 29.One roll of ribbon has 6.7 m. How many m do 6 of them make in all? =
  30. 30.One roll of ribbon has 7.6 m. How many m do 3 of them make in all? =
  31. 31.48 ÷ 5 =
  32. 32.0.7 × 0.9 =
  33. 33.One bag of potatoes weighs 4.7 kg. How many kg do 11 of them make in all? =
  34. 34.3.5 ÷ 0.5 =
  35. 35.1/7 ÷ 1/6 =
  36. 36.7/8 × 9 =
  37. 37.8/9 × 4/7 =
  38. 38.2/5 × 4/9 =
  39. 39.One bag of potatoes weighs 3.5 kg. How many kg do 9 of them make in all? =
  40. 40.3/4 ÷ 5/9 =

Answer key

  1. 0.11
  2. 4/45
  3. 2
  4. 21/5
  5. 3
  6. 49/8
  7. 4/81
  8. 15/4
  9. 6
  10. 4
  11. 1/4
  12. 15.4
  13. 6.74
  14. 15/14
  15. 26
  16. 4.49
  17. 1
  18. 84
  19. 18/5
  20. 14.3
  21. 20/3
  22. 4/9
  23. 3.35
  24. 16/3
  25. 3
  26. 3.33
  27. 8
  28. 2.75
  29. 40.2
  30. 22.8
  31. 9.6
  32. 0.63
  33. 51.7
  34. 7
  35. 6/7
  36. 63/8
  37. 32/63
  38. 8/45
  39. 31.5
  40. 27/20

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