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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 118 · 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 ÷ 0.8 =
  2. 2.2.4 ÷ 0.6 =
  3. 3.2.1 × 0.6 =
  4. 4.1.2 ÷ 0.3 =
  5. 5.26.7 ÷ 5 =
  6. 6.7.7 ÷ 0.7 =
  7. 7.4.78 ÷ 2 =
  8. 8.One bag of potatoes weighs 2.6 kg. How many kg do 3 of them make in all? =
  9. 9.1.6 ÷ 0.2 =
  10. 10.2/3 × 15 =
  11. 11.3/5 × 3 =
  12. 12.2.4 ÷ 0.2 =
  13. 13.1/4 × 13 =
  14. 14.3/5 × 5/7 =
  15. 15.7/8 × 15 =
  16. 16.4/5 × 3/5 =
  17. 17.5/8 × 7/8 =
  18. 18.One bottle of oil holds 5.3 L. How many L do 3 of them make in all? =
  19. 19.31.85 ÷ 5 =
  20. 20.0.2 × 0.4 =
  21. 21.6/7 ÷ 2/3 =
  22. 22.1/9 × 13 =
  23. 23.17.96 ÷ 2 =
  24. 24.1/7 ÷ 5/8 =
  25. 25.One roll of ribbon has 2.3 m. How many m do 2 of them make in all? =
  26. 26.6/7 ÷ 1/8 =
  27. 27.4/7 × 7/9 =
  28. 28.5/6 × 6 =
  29. 29.1/4 × 12 =
  30. 30.1.4 ÷ 0.2 =
  31. 31.One packet of rice weighs 3.3 kg. How many kg do 9 of them make in all? =
  32. 32.3/4 × 6/7 =
  33. 33.4/5 × 1/2 =
  34. 34.0.7 × 0.5 =
  35. 35.4/9 × 6 =
  36. 36.1/8 ÷ 1/2 =
  37. 37.7/9 × 10 =
  38. 38.3.9 × 0.3 =
  39. 39.One bottle of oil holds 3.4 L. How many L do 9 of them make in all? =
  40. 40.6.4 × 0.3 =

Answer key

  1. 2
  2. 4
  3. 1.26
  4. 4
  5. 5.34
  6. 11
  7. 2.39
  8. 7.8
  9. 8
  10. 10
  11. 9/5
  12. 12
  13. 13/4
  14. 3/7
  15. 105/8
  16. 12/25
  17. 35/64
  18. 15.9
  19. 6.37
  20. 0.08
  21. 9/7
  22. 13/9
  23. 8.98
  24. 8/35
  25. 4.6
  26. 48/7
  27. 4/9
  28. 5
  29. 3
  30. 7
  31. 29.7
  32. 9/14
  33. 2/5
  34. 0.35
  35. 8/3
  36. 1/4
  37. 70/9
  38. 1.17
  39. 30.6
  40. 1.92

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