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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 302 · 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. 1.1/4 ÷ 1/3 =
  2. 2.2/5 ÷ 1/9 =
  3. 3.9.5 ÷ 2 =
  4. 4.1.8 ÷ 0.9 =
  5. 5.One jug of milk holds 2.9 L. How many L do 5 of them make in all? =
  6. 6.9.3 × 0.3 =
  7. 7.1/9 × 4 =
  8. 8.2/3 × 5/8 =
  9. 9.7.1 × 0.2 =
  10. 10.4/5 ÷ 1/7 =
  11. 11.5/8 × 7 =
  12. 12.1.76 ÷ 4 =
  13. 13.1/3 × 1/3 =
  14. 14.1/3 × 2 =
  15. 15.5.2 × 0.5 =
  16. 16.7/8 × 2 =
  17. 17.3/8 × 4 =
  18. 18.4/5 × 1/6 =
  19. 19.7.7 × 0.3 =
  20. 20.6.9 × 0.7 =
  21. 21.One bag of potatoes weighs 2.2 kg. How many kg do 7 of them make in all? =
  22. 22.3/5 ÷ 1/4 =
  23. 23.One bag of potatoes weighs 3 kg. How many kg do 12 of them make in all? =
  24. 24.1/2 × 5/8 =
  25. 25.One bottle of oil holds 1.6 L. How many L do 6 of them make in all? =
  26. 26.6/7 × 13 =
  27. 27.5.6 ÷ 0.7 =
  28. 28.1/4 × 12 =
  29. 29.8/9 ÷ 5/8 =
  30. 30.5/8 ÷ 1/9 =
  31. 31.3.38 ÷ 2 =
  32. 32.7.8 × 0.9 =
  33. 33.7/8 × 1/3 =
  34. 34.4/9 × 3/8 =
  35. 35.2/9 × 3/5 =
  36. 36.6.5 × 0.3 =
  37. 37.One packet of rice weighs 6.8 kg. How many kg do 6 of them make in all? =
  38. 38.One packet of rice weighs 7.1 kg. How many kg do 10 of them make in all? =
  39. 39.1.6 ÷ 0.4 =
  40. 40.1/5 × 1/3 =

Answer key

  1. 3/4
  2. 18/5
  3. 4.75
  4. 2
  5. 14.5
  6. 2.79
  7. 4/9
  8. 5/12
  9. 1.42
  10. 28/5
  11. 35/8
  12. 0.44
  13. 1/9
  14. 2/3
  15. 2.6
  16. 7/4
  17. 3/2
  18. 2/15
  19. 2.31
  20. 4.83
  21. 15.4
  22. 12/5
  23. 36
  24. 5/16
  25. 9.6
  26. 78/7
  27. 8
  28. 3
  29. 64/45
  30. 45/8
  31. 1.69
  32. 7.02
  33. 7/24
  34. 1/6
  35. 2/15
  36. 1.95
  37. 40.8
  38. 71
  39. 4
  40. 1/15

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