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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 248 · 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. 1.5/8 × 1/9 =
  2. 2.2.1 ÷ 0.7 =
  3. 3.5/7 ÷ 5/8 =
  4. 4.1/8 ÷ 5/7 =
  5. 5.1/5 × 2/3 =
  6. 6.2.4 × 0.2 =
  7. 7.8.7 × 0.7 =
  8. 8.8/9 × 7 =
  9. 9.28.4 ÷ 4 =
  10. 10.9.54 ÷ 2 =
  11. 11.1/3 × 2/7 =
  12. 12.3/4 × 3/4 =
  13. 13.One roll of ribbon has 2.7 m. How many m do 3 of them make in all? =
  14. 14.2/7 × 2 =
  15. 15.2/9 × 1/8 =
  16. 16.One jug of milk holds 9.8 L. How many L do 3 of them make in all? =
  17. 17.1/9 × 7 =
  18. 18.34.88 ÷ 4 =
  19. 19.4/9 × 12 =
  20. 20.7.12 ÷ 4 =
  21. 21.19.92 ÷ 4 =
  22. 22.11.84 ÷ 4 =
  23. 23.2 ÷ 0.5 =
  24. 24.1/3 × 2/9 =
  25. 25.2.28 ÷ 4 =
  26. 26.0.4 × 0.8 =
  27. 27.2/5 × 1/9 =
  28. 28.2.5 ÷ 0.5 =
  29. 29.2.4 ÷ 0.2 =
  30. 30.1.86 ÷ 2 =
  31. 31.0.8 ÷ 0.4 =
  32. 32.One bag of potatoes weighs 2.4 kg. How many kg do 8 of them make in all? =
  33. 33.2/9 × 1/7 =
  34. 34.1/3 × 15 =
  35. 35.1/6 × 1/2 =
  36. 36.3/5 × 13 =
  37. 37.One bag of potatoes weighs 2.7 kg. How many kg do 4 of them make in all? =
  38. 38.1/7 × 6 =
  39. 39.1.1 × 0.4 =
  40. 40.One bottle of oil holds 3.9 L. How many L do 8 of them make in all? =

Answer key

  1. 5/72
  2. 3
  3. 8/7
  4. 7/40
  5. 2/15
  6. 0.48
  7. 6.09
  8. 56/9
  9. 7.1
  10. 4.77
  11. 2/21
  12. 9/16
  13. 8.1
  14. 4/7
  15. 1/36
  16. 29.4
  17. 7/9
  18. 8.72
  19. 16/3
  20. 1.78
  21. 4.98
  22. 2.96
  23. 4
  24. 2/27
  25. 0.57
  26. 0.32
  27. 2/45
  28. 5
  29. 12
  30. 0.93
  31. 2
  32. 19.2
  33. 2/63
  34. 5
  35. 1/12
  36. 39/5
  37. 10.8
  38. 6/7
  39. 0.44
  40. 31.2

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