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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 167 · 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 ÷ 1/2 =
  2. 2.8.2 × 0.9 =
  3. 3.7.06 ÷ 2 =
  4. 4.7.54 ÷ 2 =
  5. 5.3.4 × 0.3 =
  6. 6.2 ÷ 4 =
  7. 7.16.4 ÷ 4 =
  8. 8.1/8 ÷ 5/9 =
  9. 9.3/8 × 3 =
  10. 10.One packet of rice weighs 7.4 kg. How many kg do 2 of them make in all? =
  11. 11.2/5 × 2/7 =
  12. 12.One jug of milk holds 6.7 L. How many L do 8 of them make in all? =
  13. 13.One bag of potatoes weighs 1.5 kg. How many kg do 7 of them make in all? =
  14. 14.12.62 ÷ 2 =
  15. 15.8/9 ÷ 1/3 =
  16. 16.20 ÷ 4 =
  17. 17.75.68 ÷ 8 =
  18. 18.22.52 ÷ 4 =
  19. 19.0.6 ÷ 0.2 =
  20. 20.6.9 × 0.3 =
  21. 21.One bottle of oil holds 2.3 L. How many L do 12 of them make in all? =
  22. 22.4.2 ÷ 0.6 =
  23. 23.2.84 ÷ 2 =
  24. 24.1/3 × 1/9 =
  25. 25.One bag of potatoes weighs 9.6 kg. How many kg do 10 of them make in all? =
  26. 26.5/9 × 3/7 =
  27. 27.5/6 ÷ 3/7 =
  28. 28.3.2 ÷ 0.8 =
  29. 29.0.2 × 0.5 =
  30. 30.1.16 ÷ 4 =
  31. 31.3/5 ÷ 1/3 =
  32. 32.4/7 × 7 =
  33. 33.7.1 × 0.4 =
  34. 34.5/7 × 10 =
  35. 35.9.6 ÷ 0.8 =
  36. 36.1/3 ÷ 3/4 =
  37. 37.3/4 × 7/8 =
  38. 38.2/9 ÷ 1/2 =
  39. 39.2.3 × 0.7 =
  40. 40.One roll of ribbon has 7.3 m. How many m do 8 of them make in all? =

Answer key

  1. 1/3
  2. 7.38
  3. 3.53
  4. 3.77
  5. 1.02
  6. 0.5
  7. 4.1
  8. 9/40
  9. 9/8
  10. 14.8
  11. 4/35
  12. 53.6
  13. 10.5
  14. 6.31
  15. 8/3
  16. 5
  17. 9.46
  18. 5.63
  19. 3
  20. 2.07
  21. 27.6
  22. 7
  23. 1.42
  24. 1/27
  25. 96
  26. 5/21
  27. 35/18
  28. 4
  29. 0.1
  30. 0.29
  31. 9/5
  32. 4
  33. 2.84
  34. 50/7
  35. 12
  36. 4/9
  37. 21/32
  38. 4/9
  39. 1.61
  40. 58.4

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