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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 65 · 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. 1.5/7 × 3 =
  2. 2.2.1 ÷ 0.7 =
  3. 3.7/9 × 3/4 =
  4. 4.3/4 ÷ 1/3 =
  5. 5.4.8 ÷ 0.6 =
  6. 6.0.8 × 0.5 =
  7. 7.2/7 × 11 =
  8. 8.6/7 × 3 =
  9. 9.3/7 × 1/5 =
  10. 10.1.6 ÷ 0.4 =
  11. 11.5/6 × 7/9 =
  12. 12.One bottle of oil holds 6.7 L. How many L do 2 of them make in all? =
  13. 13.1/4 ÷ 7/9 =
  14. 14.20.55 ÷ 5 =
  15. 15.6/7 × 4/5 =
  16. 16.3/7 × 5/8 =
  17. 17.One roll of ribbon has 3.8 m. How many m do 4 of them make in all? =
  18. 18.5/6 × 4/5 =
  19. 19.2/9 × 12 =
  20. 20.2 ÷ 0.5 =
  21. 21.7/9 × 15 =
  22. 22.7.1 ÷ 2 =
  23. 23.4/5 × 5/9 =
  24. 24.2/7 × 7/8 =
  25. 25.2/3 × 11 =
  26. 26.4.1 × 0.3 =
  27. 27.5/6 × 8 =
  28. 28.1/8 ÷ 2/9 =
  29. 29.2.2 × 0.6 =
  30. 30.1/6 × 6 =
  31. 31.4/5 × 14 =
  32. 32.4/5 ÷ 4/7 =
  33. 33.2/5 ÷ 4/9 =
  34. 34.3/7 × 1/2 =
  35. 35.1/2 × 10 =
  36. 36.4/9 × 1/8 =
  37. 37.One roll of ribbon has 3.4 m. How many m do 12 of them make in all? =
  38. 38.One jug of milk holds 3.2 L. How many L do 3 of them make in all? =
  39. 39.1/5 ÷ 2/9 =
  40. 40.3.1 × 0.2 =

Answer key

  1. 15/7
  2. 3
  3. 7/12
  4. 9/4
  5. 8
  6. 0.4
  7. 22/7
  8. 18/7
  9. 3/35
  10. 4
  11. 35/54
  12. 13.4
  13. 9/28
  14. 4.11
  15. 24/35
  16. 15/56
  17. 15.2
  18. 2/3
  19. 8/3
  20. 4
  21. 35/3
  22. 3.55
  23. 4/9
  24. 1/4
  25. 22/3
  26. 1.23
  27. 20/3
  28. 9/16
  29. 1.32
  30. 1
  31. 56/5
  32. 7/5
  33. 9/10
  34. 3/14
  35. 5
  36. 1/18
  37. 40.8
  38. 9.6
  39. 9/10
  40. 0.62

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