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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 318 · 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. 1.1/5 ÷ 5/8 =
  2. 2.20.45 ÷ 5 =
  3. 3.3 ÷ 0.3 =
  4. 4.2/5 ÷ 4/9 =
  5. 5.2.7 × 0.7 =
  6. 6.One jug of milk holds 9.2 L. How many L do 11 of them make in all? =
  7. 7.3.7 × 0.4 =
  8. 8.7/9 ÷ 8/9 =
  9. 9.One bag of potatoes weighs 1.1 kg. How many kg do 10 of them make in all? =
  10. 10.0.9 × 0.4 =
  11. 11.7.16 ÷ 4 =
  12. 12.2.8 ÷ 0.4 =
  13. 13.One jug of milk holds 7.8 L. How many L do 5 of them make in all? =
  14. 14.2/7 × 3/7 =
  15. 15.3/8 ÷ 7/9 =
  16. 16.2.5 × 0.4 =
  17. 17.1/3 ÷ 5/7 =
  18. 18.One jug of milk holds 6.8 L. How many L do 3 of them make in all? =
  19. 19.66.88 ÷ 8 =
  20. 20.1/7 × 4 =
  21. 21.One bag of potatoes weighs 6.7 kg. How many kg do 3 of them make in all? =
  22. 22.3.6 × 0.7 =
  23. 23.2.62 ÷ 2 =
  24. 24.56.32 ÷ 8 =
  25. 25.4/7 ÷ 5/9 =
  26. 26.8 ÷ 0.8 =
  27. 27.5/9 ÷ 5/8 =
  28. 28.2/9 ÷ 2/3 =
  29. 29.13.3 ÷ 2 =
  30. 30.3/4 × 8 =
  31. 31.4.88 ÷ 2 =
  32. 32.4/7 × 6/7 =
  33. 33.One roll of ribbon has 7.1 m. How many m do 4 of them make in all? =
  34. 34.2.3 × 0.6 =
  35. 35.One jug of milk holds 7.4 L. How many L do 11 of them make in all? =
  36. 36.5/6 × 9 =
  37. 37.4.64 ÷ 2 =
  38. 38.1/5 ÷ 1/6 =
  39. 39.19 ÷ 2 =
  40. 40.1/2 × 3 =

Answer key

  1. 8/25
  2. 4.09
  3. 10
  4. 9/10
  5. 1.89
  6. 101.2
  7. 1.48
  8. 7/8
  9. 11
  10. 0.36
  11. 1.79
  12. 7
  13. 39
  14. 6/49
  15. 27/56
  16. 1
  17. 7/15
  18. 20.4
  19. 8.36
  20. 4/7
  21. 20.1
  22. 2.52
  23. 1.31
  24. 7.04
  25. 36/35
  26. 10
  27. 8/9
  28. 1/3
  29. 6.65
  30. 6
  31. 2.44
  32. 24/49
  33. 28.4
  34. 1.38
  35. 81.4
  36. 15/2
  37. 2.32
  38. 6/5
  39. 9.5
  40. 3/2

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