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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 202 · 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.One bottle of oil holds 1.1 L. How many L do 9 of them make in all? =
  2. 2.One bag of potatoes weighs 9 kg. How many kg do 2 of them make in all? =
  3. 3.7/8 × 7/9 =
  4. 4.8.8 × 0.2 =
  5. 5.8 ÷ 0.8 =
  6. 6.3.05 ÷ 5 =
  7. 7.1/8 × 5 =
  8. 8.3/5 ÷ 7/9 =
  9. 9.2.7 × 0.2 =
  10. 10.5.4 ÷ 0.6 =
  11. 11.5/6 × 1/7 =
  12. 12.8/9 × 8 =
  13. 13.1/3 ÷ 7/9 =
  14. 14.9.48 ÷ 4 =
  15. 15.2/9 × 7 =
  16. 16.2.7 ÷ 0.9 =
  17. 17.1/3 × 9 =
  18. 18.8.9 × 0.7 =
  19. 19.1/7 ÷ 5/9 =
  20. 20.One bag of potatoes weighs 8.7 kg. How many kg do 4 of them make in all? =
  21. 21.3/4 × 7 =
  22. 22.5/6 × 10 =
  23. 23.7/9 × 9 =
  24. 24.1/6 ÷ 1/9 =
  25. 25.One roll of ribbon has 8.6 m. How many m do 8 of them make in all? =
  26. 26.1.2 × 0.3 =
  27. 27.12.2 ÷ 5 =
  28. 28.2/9 × 5/8 =
  29. 29.20.35 ÷ 5 =
  30. 30.1/6 × 1/4 =
  31. 31.4/5 × 1/6 =
  32. 32.7/8 × 8 =
  33. 33.1/2 × 2/5 =
  34. 34.8.6 × 0.2 =
  35. 35.1/4 × 10 =
  36. 36.5/6 ÷ 2/3 =
  37. 37.4/9 ÷ 1/9 =
  38. 38.5/6 × 2/3 =
  39. 39.3/5 × 6 =
  40. 40.4.2 × 0.2 =

Answer key

  1. 9.9
  2. 18
  3. 49/72
  4. 1.76
  5. 10
  6. 0.61
  7. 5/8
  8. 27/35
  9. 0.54
  10. 9
  11. 5/42
  12. 64/9
  13. 3/7
  14. 2.37
  15. 14/9
  16. 3
  17. 3
  18. 6.23
  19. 9/35
  20. 34.8
  21. 21/4
  22. 25/3
  23. 7
  24. 3/2
  25. 68.8
  26. 0.36
  27. 2.44
  28. 5/36
  29. 4.07
  30. 1/24
  31. 2/15
  32. 7
  33. 1/5
  34. 1.72
  35. 5/2
  36. 5/4
  37. 4
  38. 5/9
  39. 18/5
  40. 0.84

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