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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 296 · 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. 1.8.4 × 0.3 =
  2. 2.11.04 ÷ 2 =
  3. 3.1/5 ÷ 3/8 =
  4. 4.4/7 × 5/9 =
  5. 5.5/8 × 3/7 =
  6. 6.1.2 ÷ 0.3 =
  7. 7.3/8 × 12 =
  8. 8.One bag of potatoes weighs 6 kg. How many kg do 3 of them make in all? =
  9. 9.3/8 ÷ 3/7 =
  10. 10.5/6 × 2/5 =
  11. 11.One bottle of oil holds 6.2 L. How many L do 7 of them make in all? =
  12. 12.8/9 × 14 =
  13. 13.1/7 × 5/8 =
  14. 14.7.7 × 0.9 =
  15. 15.0.34 ÷ 2 =
  16. 16.8/9 × 13 =
  17. 17.5/6 × 2/3 =
  18. 18.1.1 × 0.7 =
  19. 19.One bottle of oil holds 1.1 L. How many L do 12 of them make in all? =
  20. 20.One bottle of oil holds 8.4 L. How many L do 12 of them make in all? =
  21. 21.One jug of milk holds 4.9 L. How many L do 10 of them make in all? =
  22. 22.3.6 ÷ 0.4 =
  23. 23.One roll of ribbon has 1.5 m. How many m do 7 of them make in all? =
  24. 24.9.6 ÷ 0.8 =
  25. 25.7/9 ÷ 3/5 =
  26. 26.3/7 ÷ 1/2 =
  27. 27.1.82 ÷ 2 =
  28. 28.1/8 × 4 =
  29. 29.1/2 ÷ 1/3 =
  30. 30.3/8 × 6/7 =
  31. 31.3/4 ÷ 5/8 =
  32. 32.0.6 ÷ 0.2 =
  33. 33.7/8 × 12 =
  34. 34.7.7 ÷ 0.7 =
  35. 35.2/5 × 1/4 =
  36. 36.3/4 × 4 =
  37. 37.7.6 × 0.5 =
  38. 38.1/4 × 4 =
  39. 39.1/9 × 6 =
  40. 40.44 ÷ 5 =

Answer key

  1. 2.52
  2. 5.52
  3. 8/15
  4. 20/63
  5. 15/56
  6. 4
  7. 9/2
  8. 18
  9. 7/8
  10. 1/3
  11. 43.4
  12. 112/9
  13. 5/56
  14. 6.93
  15. 0.17
  16. 104/9
  17. 5/9
  18. 0.77
  19. 13.2
  20. 100.8
  21. 49
  22. 9
  23. 10.5
  24. 12
  25. 35/27
  26. 6/7
  27. 0.91
  28. 1/2
  29. 3/2
  30. 9/28
  31. 6/5
  32. 3
  33. 21/2
  34. 11
  35. 1/10
  36. 3
  37. 3.8
  38. 1
  39. 2/3
  40. 8.8

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