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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 207 · 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. 1.1/2 ÷ 6/7 =
  2. 2.One bag of potatoes weighs 4.7 kg. How many kg do 3 of them make in all? =
  3. 3.1.8 ÷ 0.6 =
  4. 4.29.04 ÷ 8 =
  5. 5.3/8 ÷ 3/4 =
  6. 6.1/3 × 14 =
  7. 7.4.06 ÷ 2 =
  8. 8.1/4 × 2/9 =
  9. 9.One roll of ribbon has 2.8 m. How many m do 11 of them make in all? =
  10. 10.4/9 × 6 =
  11. 11.2.4 × 0.7 =
  12. 12.One roll of ribbon has 2.2 m. How many m do 11 of them make in all? =
  13. 13.5/9 ÷ 1/5 =
  14. 14.3/5 × 1/3 =
  15. 15.1/5 × 3/4 =
  16. 16.5/6 ÷ 1/2 =
  17. 17.4.8 × 0.9 =
  18. 18.4/5 × 9 =
  19. 19.3/7 × 11 =
  20. 20.One bottle of oil holds 6.7 L. How many L do 2 of them make in all? =
  21. 21.5/6 ÷ 1/4 =
  22. 22.3/5 × 5 =
  23. 23.7.7 ÷ 0.7 =
  24. 24.5/9 × 14 =
  25. 25.3.5 ÷ 0.5 =
  26. 26.0.1 × 0.8 =
  27. 27.13.62 ÷ 2 =
  28. 28.0.4 × 0.5 =
  29. 29.12.56 ÷ 2 =
  30. 30.1/2 × 4/7 =
  31. 31.1/6 × 12 =
  32. 32.5/9 × 2/7 =
  33. 33.1/5 × 3/5 =
  34. 34.1/5 × 7/9 =
  35. 35.One bottle of oil holds 4.6 L. How many L do 6 of them make in all? =
  36. 36.2/3 × 5/9 =
  37. 37.4/7 × 4 =
  38. 38.1.3 × 0.3 =
  39. 39.6/7 ÷ 5/8 =
  40. 40.1/7 × 7/9 =

Answer key

  1. 7/12
  2. 14.1
  3. 3
  4. 3.63
  5. 1/2
  6. 14/3
  7. 2.03
  8. 1/18
  9. 30.8
  10. 8/3
  11. 1.68
  12. 24.2
  13. 25/9
  14. 1/5
  15. 3/20
  16. 5/3
  17. 4.32
  18. 36/5
  19. 33/7
  20. 13.4
  21. 10/3
  22. 3
  23. 11
  24. 70/9
  25. 7
  26. 0.08
  27. 6.81
  28. 0.2
  29. 6.28
  30. 2/7
  31. 2
  32. 10/63
  33. 3/25
  34. 7/45
  35. 27.6
  36. 10/27
  37. 16/7
  38. 0.39
  39. 48/35
  40. 1/9

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