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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 465 · 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. 1.22.96 ÷ 8 =
  2. 2.10.08 ÷ 4 =
  3. 3.4/5 × 15 =
  4. 4.0.5 × 0.9 =
  5. 5.1/2 × 15 =
  6. 6.1.2 ÷ 0.3 =
  7. 7.One packet of rice weighs 6.8 kg. How many kg do 5 of them make in all? =
  8. 8.1/9 × 1/8 =
  9. 9.14.64 ÷ 8 =
  10. 10.3.8 × 0.8 =
  11. 11.9.92 ÷ 2 =
  12. 12.2/9 ÷ 8/9 =
  13. 13.One roll of ribbon has 8 m. How many m do 4 of them make in all? =
  14. 14.70.64 ÷ 8 =
  15. 15.6.7 × 0.2 =
  16. 16.17.12 ÷ 4 =
  17. 17.3.7 × 0.3 =
  18. 18.One roll of ribbon has 8.1 m. How many m do 11 of them make in all? =
  19. 19.0.4 × 0.5 =
  20. 20.2.6 × 0.7 =
  21. 21.2/5 ÷ 5/9 =
  22. 22.One bottle of oil holds 2 L. How many L do 3 of them make in all? =
  23. 23.11.8 ÷ 5 =
  24. 24.1.2 × 0.9 =
  25. 25.One packet of rice weighs 4.4 kg. How many kg do 8 of them make in all? =
  26. 26.1/7 × 11 =
  27. 27.One packet of rice weighs 9.5 kg. How many kg do 6 of them make in all? =
  28. 28.5/7 × 7/8 =
  29. 29.One bottle of oil holds 3.4 L. How many L do 12 of them make in all? =
  30. 30.1/4 × 3/4 =
  31. 31.7.2 ÷ 0.9 =
  32. 32.4.2 ÷ 0.6 =
  33. 33.4.8 × 0.7 =
  34. 34.9.2 ÷ 5 =
  35. 35.5/9 × 13 =
  36. 36.3/7 × 5/9 =
  37. 37.One bag of potatoes weighs 9.9 kg. How many kg do 9 of them make in all? =
  38. 38.4/9 ÷ 1/9 =
  39. 39.4/7 × 5/8 =
  40. 40.3/7 ÷ 3/7 =

Answer key

  1. 2.87
  2. 2.52
  3. 12
  4. 0.45
  5. 15/2
  6. 4
  7. 34
  8. 1/72
  9. 1.83
  10. 3.04
  11. 4.96
  12. 1/4
  13. 32
  14. 8.83
  15. 1.34
  16. 4.28
  17. 1.11
  18. 89.1
  19. 0.2
  20. 1.82
  21. 18/25
  22. 6
  23. 2.36
  24. 1.08
  25. 35.2
  26. 11/7
  27. 57
  28. 5/8
  29. 40.8
  30. 3/16
  31. 8
  32. 7
  33. 3.36
  34. 1.84
  35. 65/9
  36. 5/21
  37. 89.1
  38. 4
  39. 5/14
  40. 1

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