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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 102 · 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. 1.2 ÷ 0.5 =
  2. 2.16.85 ÷ 5 =
  3. 3.6.3 × 0.6 =
  4. 4.One roll of ribbon has 7 m. How many m do 2 of them make in all? =
  5. 5.1/6 × 15 =
  6. 6.One bag of potatoes weighs 9.5 kg. How many kg do 2 of them make in all? =
  7. 7.8.55 ÷ 5 =
  8. 8.2 ÷ 0.4 =
  9. 9.5/7 ÷ 5/7 =
  10. 10.8/9 × 13 =
  11. 11.2/5 × 6/7 =
  12. 12.16.56 ÷ 2 =
  13. 13.6.96 ÷ 8 =
  14. 14.1.8 ÷ 0.9 =
  15. 15.3.5 ÷ 0.5 =
  16. 16.One bottle of oil holds 3.5 L. How many L do 11 of them make in all? =
  17. 17.1/2 × 1/9 =
  18. 18.16.08 ÷ 2 =
  19. 19.2/9 × 2/5 =
  20. 20.5.9 × 0.2 =
  21. 21.3/8 ÷ 5/9 =
  22. 22.One packet of rice weighs 4.9 kg. How many kg do 12 of them make in all? =
  23. 23.One jug of milk holds 1.2 L. How many L do 2 of them make in all? =
  24. 24.3/8 ÷ 1/4 =
  25. 25.6/7 × 2 =
  26. 26.5/6 × 5 =
  27. 27.36.24 ÷ 8 =
  28. 28.3/8 × 3/4 =
  29. 29.9.6 ÷ 0.8 =
  30. 30.3.3 × 0.2 =
  31. 31.5.6 ÷ 0.7 =
  32. 32.6/7 × 4/7 =
  33. 33.4/7 × 7 =
  34. 34.1/2 ÷ 2/5 =
  35. 35.10.7 ÷ 5 =
  36. 36.One bag of potatoes weighs 5.3 kg. How many kg do 12 of them make in all? =
  37. 37.73.44 ÷ 8 =
  38. 38.23.12 ÷ 8 =
  39. 39.4/7 × 4/9 =
  40. 40.5/7 × 8/9 =

Answer key

  1. 4
  2. 3.37
  3. 3.78
  4. 14
  5. 5/2
  6. 19
  7. 1.71
  8. 5
  9. 1
  10. 104/9
  11. 12/35
  12. 8.28
  13. 0.87
  14. 2
  15. 7
  16. 38.5
  17. 1/18
  18. 8.04
  19. 4/45
  20. 1.18
  21. 27/40
  22. 58.8
  23. 2.4
  24. 3/2
  25. 12/7
  26. 25/6
  27. 4.53
  28. 9/32
  29. 12
  30. 0.66
  31. 8
  32. 24/49
  33. 4
  34. 5/4
  35. 2.14
  36. 63.6
  37. 9.18
  38. 2.89
  39. 16/63
  40. 40/63

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