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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 339 · 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. 1.9.7 × 0.9 =
  2. 2.7/8 × 5 =
  3. 3.2/7 × 8 =
  4. 4.One jug of milk holds 4.3 L. How many L do 2 of them make in all? =
  5. 5.3.2 × 0.6 =
  6. 6.1/2 ÷ 2/5 =
  7. 7.19.2 ÷ 8 =
  8. 8.26.76 ÷ 4 =
  9. 9.4.5 × 0.3 =
  10. 10.3/7 × 3/7 =
  11. 11.3.2 × 0.3 =
  12. 12.5.5 × 0.5 =
  13. 13.1/3 ÷ 2/9 =
  14. 14.8.1 × 0.8 =
  15. 15.6 ÷ 8 =
  16. 16.7.1 × 0.3 =
  17. 17.2/3 × 10 =
  18. 18.1/7 ÷ 5/7 =
  19. 19.5.5 × 0.4 =
  20. 20.1/2 ÷ 5/6 =
  21. 21.3/5 ÷ 7/8 =
  22. 22.7/8 × 6 =
  23. 23.3/4 × 3 =
  24. 24.1/2 × 15 =
  25. 25.31.16 ÷ 4 =
  26. 26.1/4 × 3/7 =
  27. 27.One bag of potatoes weighs 2.8 kg. How many kg do 6 of them make in all? =
  28. 28.24.96 ÷ 4 =
  29. 29.8.5 × 0.4 =
  30. 30.5/7 ÷ 4/9 =
  31. 31.7.2 × 0.9 =
  32. 32.3/7 × 4/5 =
  33. 33.1/3 ÷ 3/4 =
  34. 34.One bottle of oil holds 2.8 L. How many L do 8 of them make in all? =
  35. 35.1/4 ÷ 3/8 =
  36. 36.One bottle of oil holds 4.8 L. How many L do 10 of them make in all? =
  37. 37.One jug of milk holds 6 L. How many L do 4 of them make in all? =
  38. 38.2/3 × 7/9 =
  39. 39.1/6 × 5/8 =
  40. 40.1/7 ÷ 1/8 =

Answer key

  1. 8.73
  2. 35/8
  3. 16/7
  4. 8.6
  5. 1.92
  6. 5/4
  7. 2.4
  8. 6.69
  9. 1.35
  10. 9/49
  11. 0.96
  12. 2.75
  13. 3/2
  14. 6.48
  15. 0.75
  16. 2.13
  17. 20/3
  18. 1/5
  19. 2.2
  20. 3/5
  21. 24/35
  22. 21/4
  23. 9/4
  24. 15/2
  25. 7.79
  26. 3/28
  27. 16.8
  28. 6.24
  29. 3.4
  30. 45/28
  31. 6.48
  32. 12/35
  33. 4/9
  34. 22.4
  35. 2/3
  36. 48
  37. 24
  38. 14/27
  39. 5/48
  40. 8/7

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