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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 222 · 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.One packet of rice weighs 6.3 kg. How many kg do 4 of them make in all? =
  2. 2.8.26 ÷ 2 =
  3. 3.5/9 × 5/7 =
  4. 4.2/3 × 7 =
  5. 5.5.8 × 0.9 =
  6. 6.32.92 ÷ 4 =
  7. 7.3/5 × 12 =
  8. 8.1/6 × 2/5 =
  9. 9.One packet of rice weighs 4.8 kg. How many kg do 10 of them make in all? =
  10. 10.3/4 × 2/9 =
  11. 11.3/5 × 3/5 =
  12. 12.5.2 × 0.2 =
  13. 13.One bag of potatoes weighs 2.5 kg. How many kg do 10 of them make in all? =
  14. 14.1.6 ÷ 0.2 =
  15. 15.7/9 × 4/7 =
  16. 16.3.6 ÷ 0.3 =
  17. 17.5/7 × 3/5 =
  18. 18.7.1 × 0.3 =
  19. 19.2/9 × 1/2 =
  20. 20.4 ÷ 0.5 =
  21. 21.2/5 × 4/5 =
  22. 22.4/9 × 5 =
  23. 23.8/9 × 11 =
  24. 24.1/9 × 1/6 =
  25. 25.8/9 × 10 =
  26. 26.4/5 × 15 =
  27. 27.6/7 × 3 =
  28. 28.3/5 ÷ 3/5 =
  29. 29.7/8 × 1/4 =
  30. 30.1/9 ÷ 1/5 =
  31. 31.3.6 ÷ 0.9 =
  32. 32.One jug of milk holds 9.9 L. How many L do 5 of them make in all? =
  33. 33.3.5 ÷ 0.7 =
  34. 34.2/7 × 11 =
  35. 35.6.4 × 0.5 =
  36. 36.1/2 × 1/8 =
  37. 37.1/3 ÷ 2/9 =
  38. 38.31.04 ÷ 4 =
  39. 39.38.4 ÷ 4 =
  40. 40.9.9 ÷ 0.9 =

Answer key

  1. 25.2
  2. 4.13
  3. 25/63
  4. 14/3
  5. 5.22
  6. 8.23
  7. 36/5
  8. 1/15
  9. 48
  10. 1/6
  11. 9/25
  12. 1.04
  13. 25
  14. 8
  15. 4/9
  16. 12
  17. 3/7
  18. 2.13
  19. 1/9
  20. 8
  21. 8/25
  22. 20/9
  23. 88/9
  24. 1/54
  25. 80/9
  26. 12
  27. 18/7
  28. 1
  29. 7/32
  30. 5/9
  31. 4
  32. 49.5
  33. 5
  34. 22/7
  35. 3.2
  36. 1/16
  37. 3/2
  38. 7.76
  39. 9.6
  40. 11

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