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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 234 · 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. 1.4/5 × 6 =
  2. 2.1/6 × 12 =
  3. 3.4/7 ÷ 4/5 =
  4. 4.2.4 ÷ 0.3 =
  5. 5.One bag of potatoes weighs 9.1 kg. How many kg do 7 of them make in all? =
  6. 6.One packet of rice weighs 7 kg. How many kg do 6 of them make in all? =
  7. 7.3/8 × 3/7 =
  8. 8.30.2 ÷ 5 =
  9. 9.2.4 ÷ 0.6 =
  10. 10.One bag of potatoes weighs 6.5 kg. How many kg do 10 of them make in all? =
  11. 11.1/2 ÷ 2/7 =
  12. 12.4/7 ÷ 2/3 =
  13. 13.1/3 × 1/9 =
  14. 14.One packet of rice weighs 6.6 kg. How many kg do 8 of them make in all? =
  15. 15.3.3 ÷ 0.3 =
  16. 16.1/6 × 6 =
  17. 17.3 ÷ 0.3 =
  18. 18.5/7 × 2/5 =
  19. 19.1/4 × 2/9 =
  20. 20.0.7 × 0.2 =
  21. 21.12.7 ÷ 2 =
  22. 22.1/9 × 2/5 =
  23. 23.2/5 × 2/5 =
  24. 24.33.16 ÷ 4 =
  25. 25.1 ÷ 0.5 =
  26. 26.7.7 × 0.3 =
  27. 27.3.2 ÷ 0.4 =
  28. 28.1/5 ÷ 2/9 =
  29. 29.2.4 ÷ 0.4 =
  30. 30.2.7 ÷ 0.9 =
  31. 31.One packet of rice weighs 6.3 kg. How many kg do 5 of them make in all? =
  32. 32.5/9 ÷ 4/7 =
  33. 33.1.6 ÷ 0.2 =
  34. 34.1.4 ÷ 0.2 =
  35. 35.34.32 ÷ 8 =
  36. 36.One bottle of oil holds 6.2 L. How many L do 4 of them make in all? =
  37. 37.5/6 ÷ 1/5 =
  38. 38.1/5 × 9 =
  39. 39.2.5 × 0.7 =
  40. 40.7/9 × 14 =

Answer key

  1. 24/5
  2. 2
  3. 5/7
  4. 8
  5. 63.7
  6. 42
  7. 9/56
  8. 6.04
  9. 4
  10. 65
  11. 7/4
  12. 6/7
  13. 1/27
  14. 52.8
  15. 11
  16. 1
  17. 10
  18. 2/7
  19. 1/18
  20. 0.14
  21. 6.35
  22. 2/45
  23. 4/25
  24. 8.29
  25. 2
  26. 2.31
  27. 8
  28. 9/10
  29. 6
  30. 3
  31. 31.5
  32. 35/36
  33. 8
  34. 7
  35. 4.29
  36. 24.8
  37. 25/6
  38. 9/5
  39. 1.75
  40. 98/9

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