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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 391 · 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. 1.5/6 × 2/3 =
  2. 2.3/8 × 8 =
  3. 3.8.9 × 0.7 =
  4. 4.1.2 × 0.8 =
  5. 5.One packet of rice weighs 8 kg. How many kg do 8 of them make in all? =
  6. 6.8/9 ÷ 1/7 =
  7. 7.3/7 ÷ 5/8 =
  8. 8.4/7 × 7/8 =
  9. 9.4.8 ÷ 8 =
  10. 10.7/8 × 2 =
  11. 11.2/3 × 1/2 =
  12. 12.3/4 ÷ 2/9 =
  13. 13.5.62 ÷ 2 =
  14. 14.2/7 ÷ 1/8 =
  15. 15.8/9 ÷ 4/9 =
  16. 16.32.88 ÷ 4 =
  17. 17.2/5 × 11 =
  18. 18.3.04 ÷ 4 =
  19. 19.3/5 ÷ 4/5 =
  20. 20.4/9 × 4/5 =
  21. 21.6/7 ÷ 4/9 =
  22. 22.42.4 ÷ 8 =
  23. 23.4.3 × 0.9 =
  24. 24.0.2 × 0.9 =
  25. 25.One jug of milk holds 3.6 L. How many L do 8 of them make in all? =
  26. 26.4/9 × 11 =
  27. 27.One bottle of oil holds 9.2 L. How many L do 12 of them make in all? =
  28. 28.6/7 × 5 =
  29. 29.2.2 ÷ 2 =
  30. 30.3.1 × 0.5 =
  31. 31.68.32 ÷ 8 =
  32. 32.2 ÷ 0.5 =
  33. 33.15.45 ÷ 5 =
  34. 34.1/2 × 2/3 =
  35. 35.One packet of rice weighs 5.8 kg. How many kg do 5 of them make in all? =
  36. 36.4/7 × 1/5 =
  37. 37.1/6 ÷ 1/2 =
  38. 38.4/7 × 1/3 =
  39. 39.2/9 × 4 =
  40. 40.One roll of ribbon has 8.9 m. How many m do 4 of them make in all? =

Answer key

  1. 5/9
  2. 3
  3. 6.23
  4. 0.96
  5. 64
  6. 56/9
  7. 24/35
  8. 1/2
  9. 0.6
  10. 7/4
  11. 1/3
  12. 27/8
  13. 2.81
  14. 16/7
  15. 2
  16. 8.22
  17. 22/5
  18. 0.76
  19. 3/4
  20. 16/45
  21. 27/14
  22. 5.3
  23. 3.87
  24. 0.18
  25. 28.8
  26. 44/9
  27. 110.4
  28. 30/7
  29. 1.1
  30. 1.55
  31. 8.54
  32. 4
  33. 3.09
  34. 1/3
  35. 29
  36. 4/35
  37. 1/3
  38. 4/21
  39. 8/9
  40. 35.6

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