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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 306 · 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. 1.14.32 ÷ 4 =
  2. 2.33.44 ÷ 8 =
  3. 3.1.2 ÷ 0.2 =
  4. 4.6/7 × 7 =
  5. 5.2/3 × 4/5 =
  6. 6.8/9 × 3/7 =
  7. 7.8.8 ÷ 0.8 =
  8. 8.4/7 ÷ 5/7 =
  9. 9.One roll of ribbon has 1.1 m. How many m do 5 of them make in all? =
  10. 10.0.4 × 0.8 =
  11. 11.1/6 × 6/7 =
  12. 12.4.4 ÷ 0.4 =
  13. 13.5 ÷ 0.5 =
  14. 14.1/7 × 1/9 =
  15. 15.One bottle of oil holds 1.7 L. How many L do 2 of them make in all? =
  16. 16.3/7 × 13 =
  17. 17.1/3 ÷ 2/5 =
  18. 18.7.2 ÷ 0.9 =
  19. 19.2.5 × 0.8 =
  20. 20.1/2 ÷ 1/4 =
  21. 21.2/5 ÷ 4/7 =
  22. 22.7.5 × 0.2 =
  23. 23.2/3 × 4 =
  24. 24.6.7 × 0.2 =
  25. 25.14.16 ÷ 4 =
  26. 26.5/6 × 8 =
  27. 27.3.6 ÷ 0.4 =
  28. 28.0.4 × 0.3 =
  29. 29.1/7 ÷ 2/3 =
  30. 30.8/9 × 1/7 =
  31. 31.8/9 ÷ 1/8 =
  32. 32.1.04 ÷ 8 =
  33. 33.21.28 ÷ 8 =
  34. 34.6.45 ÷ 5 =
  35. 35.4/9 × 4 =
  36. 36.3 ÷ 0.6 =
  37. 37.4/9 × 7/8 =
  38. 38.1/2 ÷ 2/3 =
  39. 39.8/9 × 3/5 =
  40. 40.1/2 ÷ 1/9 =

Answer key

  1. 3.58
  2. 4.18
  3. 6
  4. 6
  5. 8/15
  6. 8/21
  7. 11
  8. 4/5
  9. 5.5
  10. 0.32
  11. 1/7
  12. 11
  13. 10
  14. 1/63
  15. 3.4
  16. 39/7
  17. 5/6
  18. 8
  19. 2
  20. 2
  21. 7/10
  22. 1.5
  23. 8/3
  24. 1.34
  25. 3.54
  26. 20/3
  27. 9
  28. 0.12
  29. 3/14
  30. 8/63
  31. 64/9
  32. 0.13
  33. 2.66
  34. 1.29
  35. 16/9
  36. 5
  37. 7/18
  38. 3/4
  39. 8/15
  40. 9/2

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