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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 77 · 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. 1.1/6 × 7 =
  2. 2.21.15 ÷ 5 =
  3. 3.4.6 × 0.3 =
  4. 4.0.44 ÷ 2 =
  5. 5.5/8 ÷ 3/4 =
  6. 6.1/6 × 7/9 =
  7. 7.One bottle of oil holds 2.9 L. How many L do 3 of them make in all? =
  8. 8.9.7 × 0.2 =
  9. 9.6.16 ÷ 4 =
  10. 10.One bag of potatoes weighs 9.4 kg. How many kg do 10 of them make in all? =
  11. 11.1/2 × 9 =
  12. 12.3/4 ÷ 1/6 =
  13. 13.4/5 ÷ 1/4 =
  14. 14.4.8 ÷ 0.4 =
  15. 15.One bottle of oil holds 3.7 L. How many L do 4 of them make in all? =
  16. 16.2.4 ÷ 0.6 =
  17. 17.One bag of potatoes weighs 4.6 kg. How many kg do 7 of them make in all? =
  18. 18.18.8 ÷ 8 =
  19. 19.2/9 × 4/5 =
  20. 20.1/5 × 5 =
  21. 21.6.8 × 0.4 =
  22. 22.5.6 ÷ 2 =
  23. 23.One packet of rice weighs 2 kg. How many kg do 2 of them make in all? =
  24. 24.6.1 × 0.6 =
  25. 25.7.4 × 0.6 =
  26. 26.2/7 × 12 =
  27. 27.1/8 × 2/5 =
  28. 28.One jug of milk holds 7.8 L. How many L do 11 of them make in all? =
  29. 29.8/9 ÷ 5/8 =
  30. 30.43.28 ÷ 8 =
  31. 31.3/5 × 10 =
  32. 32.6.08 ÷ 8 =
  33. 33.1/5 × 9 =
  34. 34.4 ÷ 0.5 =
  35. 35.7/9 × 4 =
  36. 36.6/7 ÷ 2/3 =
  37. 37.3/8 ÷ 1/4 =
  38. 38.6.4 × 0.2 =
  39. 39.One packet of rice weighs 3.4 kg. How many kg do 8 of them make in all? =
  40. 40.4.2 × 0.7 =

Answer key

  1. 7/6
  2. 4.23
  3. 1.38
  4. 0.22
  5. 5/6
  6. 7/54
  7. 8.7
  8. 1.94
  9. 1.54
  10. 94
  11. 9/2
  12. 9/2
  13. 16/5
  14. 12
  15. 14.8
  16. 4
  17. 32.2
  18. 2.35
  19. 8/45
  20. 1
  21. 2.72
  22. 2.8
  23. 4
  24. 3.66
  25. 4.44
  26. 24/7
  27. 1/20
  28. 85.8
  29. 64/45
  30. 5.41
  31. 6
  32. 0.76
  33. 9/5
  34. 8
  35. 28/9
  36. 9/7
  37. 3/2
  38. 1.28
  39. 27.2
  40. 2.94

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