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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 377 · 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. 1.6.3 ÷ 0.9 =
  2. 2.8/9 × 10 =
  3. 3.2/9 × 2 =
  4. 4.One roll of ribbon has 4.5 m. How many m do 3 of them make in all? =
  5. 5.4/7 ÷ 2/3 =
  6. 6.4/5 × 5 =
  7. 7.7.5 × 0.4 =
  8. 8.One bag of potatoes weighs 6.6 kg. How many kg do 4 of them make in all? =
  9. 9.1/4 × 7/8 =
  10. 10.39.56 ÷ 4 =
  11. 11.1/6 × 3 =
  12. 12.5/6 × 11 =
  13. 13.9.2 × 0.2 =
  14. 14.4/9 × 2/7 =
  15. 15.2.7 ÷ 0.3 =
  16. 16.2.7 ÷ 0.9 =
  17. 17.7/9 × 1/9 =
  18. 18.1/7 × 3/5 =
  19. 19.1.4 ÷ 0.7 =
  20. 20.6/7 × 7/8 =
  21. 21.1/4 × 14 =
  22. 22.1/9 × 6 =
  23. 23.One packet of rice weighs 2.9 kg. How many kg do 12 of them make in all? =
  24. 24.3.5 ÷ 0.7 =
  25. 25.2.8 ÷ 0.7 =
  26. 26.One roll of ribbon has 1.5 m. How many m do 2 of them make in all? =
  27. 27.26.08 ÷ 4 =
  28. 28.10 ÷ 5 =
  29. 29.5/6 × 3 =
  30. 30.3/5 × 8 =
  31. 31.1.6 ÷ 0.4 =
  32. 32.One bag of potatoes weighs 8.5 kg. How many kg do 4 of them make in all? =
  33. 33.4.9 × 0.3 =
  34. 34.One bag of potatoes weighs 5.8 kg. How many kg do 10 of them make in all? =
  35. 35.1/4 × 4 =
  36. 36.4/9 ÷ 4/9 =
  37. 37.4.9 ÷ 0.7 =
  38. 38.4/5 × 1/5 =
  39. 39.One bag of potatoes weighs 1.8 kg. How many kg do 6 of them make in all? =
  40. 40.2/7 ÷ 1/9 =

Answer key

  1. 7
  2. 80/9
  3. 4/9
  4. 13.5
  5. 6/7
  6. 4
  7. 3
  8. 26.4
  9. 7/32
  10. 9.89
  11. 1/2
  12. 55/6
  13. 1.84
  14. 8/63
  15. 9
  16. 3
  17. 7/81
  18. 3/35
  19. 2
  20. 3/4
  21. 7/2
  22. 2/3
  23. 34.8
  24. 5
  25. 4
  26. 3
  27. 6.52
  28. 2
  29. 5/2
  30. 24/5
  31. 4
  32. 34
  33. 1.47
  34. 58
  35. 1
  36. 1
  37. 7
  38. 4/25
  39. 10.8
  40. 18/7

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