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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 335 · 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. 1.5/9 ÷ 2/5 =
  2. 2.One bag of potatoes weighs 2.6 kg. How many kg do 11 of them make in all? =
  3. 3.5.9 × 0.8 =
  4. 4.4/5 × 2/3 =
  5. 5.8 ÷ 0.8 =
  6. 6.One jug of milk holds 5.8 L. How many L do 2 of them make in all? =
  7. 7.3/4 × 3/7 =
  8. 8.1/7 × 1/8 =
  9. 9.1/8 × 7 =
  10. 10.5/8 × 8/9 =
  11. 11.2.7 × 0.6 =
  12. 12.4/7 ÷ 1/2 =
  13. 13.2/5 ÷ 2/3 =
  14. 14.7.2 ÷ 0.8 =
  15. 15.0.5 × 0.8 =
  16. 16.5/9 ÷ 7/9 =
  17. 17.1.2 ÷ 0.2 =
  18. 18.4/7 × 8 =
  19. 19.5/7 × 4/9 =
  20. 20.One jug of milk holds 5.8 L. How many L do 4 of them make in all? =
  21. 21.3/4 × 3 =
  22. 22.41.4 ÷ 5 =
  23. 23.One packet of rice weighs 9.4 kg. How many kg do 4 of them make in all? =
  24. 24.0.4 ÷ 0.2 =
  25. 25.4/9 ÷ 1/7 =
  26. 26.5.4 ÷ 0.9 =
  27. 27.1/3 × 3/4 =
  28. 28.4.5 ÷ 0.5 =
  29. 29.2.8 ÷ 0.7 =
  30. 30.1/4 × 5/7 =
  31. 31.7/8 ÷ 2/3 =
  32. 32.1/8 × 6 =
  33. 33.6.6 ÷ 0.6 =
  34. 34.1 ÷ 0.2 =
  35. 35.2/3 ÷ 2/7 =
  36. 36.One bag of potatoes weighs 8.6 kg. How many kg do 2 of them make in all? =
  37. 37.5.2 × 0.7 =
  38. 38.3/4 × 1/9 =
  39. 39.2/5 × 9 =
  40. 40.2.1 × 0.4 =

Answer key

  1. 25/18
  2. 28.6
  3. 4.72
  4. 8/15
  5. 10
  6. 11.6
  7. 9/28
  8. 1/56
  9. 7/8
  10. 5/9
  11. 1.62
  12. 8/7
  13. 3/5
  14. 9
  15. 0.4
  16. 5/7
  17. 6
  18. 32/7
  19. 20/63
  20. 23.2
  21. 9/4
  22. 8.28
  23. 37.6
  24. 2
  25. 28/9
  26. 6
  27. 1/4
  28. 9
  29. 4
  30. 5/28
  31. 21/16
  32. 3/4
  33. 11
  34. 5
  35. 7/3
  36. 17.2
  37. 3.64
  38. 1/12
  39. 18/5
  40. 0.84

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