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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 323 · 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. 1.6.9 × 0.2 =
  2. 2.6.4 × 0.9 =
  3. 3.3/8 × 9 =
  4. 4.One bag of potatoes weighs 8.6 kg. How many kg do 7 of them make in all? =
  5. 5.3.6 × 0.5 =
  6. 6.One packet of rice weighs 3.3 kg. How many kg do 4 of them make in all? =
  7. 7.15.7 ÷ 2 =
  8. 8.5/6 × 2 =
  9. 9.33.55 ÷ 5 =
  10. 10.5/8 × 3/7 =
  11. 11.1/3 × 4/7 =
  12. 12.44.16 ÷ 8 =
  13. 13.1/7 × 7/9 =
  14. 14.8.2 × 0.7 =
  15. 15.2/9 × 13 =
  16. 16.One bottle of oil holds 7.1 L. How many L do 7 of them make in all? =
  17. 17.7.1 × 0.2 =
  18. 18.41.92 ÷ 8 =
  19. 19.3/5 ÷ 5/6 =
  20. 20.2/3 × 1/6 =
  21. 21.One roll of ribbon has 6.8 m. How many m do 8 of them make in all? =
  22. 22.5/6 × 4/9 =
  23. 23.7/8 × 5/8 =
  24. 24.One roll of ribbon has 6.2 m. How many m do 2 of them make in all? =
  25. 25.10.84 ÷ 4 =
  26. 26.5/8 × 5/6 =
  27. 27.One roll of ribbon has 9.8 m. How many m do 5 of them make in all? =
  28. 28.1/2 ÷ 3/8 =
  29. 29.0.9 ÷ 0.3 =
  30. 30.2/7 × 6/7 =
  31. 31.2/3 × 2 =
  32. 32.2/5 × 11 =
  33. 33.38.1 ÷ 5 =
  34. 34.23.36 ÷ 8 =
  35. 35.34.1 ÷ 5 =
  36. 36.3/8 × 3/4 =
  37. 37.6.8 ÷ 4 =
  38. 38.One roll of ribbon has 4.9 m. How many m do 2 of them make in all? =
  39. 39.2/9 × 7/8 =
  40. 40.1/3 ÷ 4/9 =

Answer key

  1. 1.38
  2. 5.76
  3. 27/8
  4. 60.2
  5. 1.8
  6. 13.2
  7. 7.85
  8. 5/3
  9. 6.71
  10. 15/56
  11. 4/21
  12. 5.52
  13. 1/9
  14. 5.74
  15. 26/9
  16. 49.7
  17. 1.42
  18. 5.24
  19. 18/25
  20. 1/9
  21. 54.4
  22. 10/27
  23. 35/64
  24. 12.4
  25. 2.71
  26. 25/48
  27. 49
  28. 4/3
  29. 3
  30. 12/49
  31. 4/3
  32. 22/5
  33. 7.62
  34. 2.92
  35. 6.82
  36. 9/32
  37. 1.7
  38. 9.8
  39. 7/36
  40. 3/4

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