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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 287 · 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. 1.8/9 × 1/2 =
  2. 2.1/2 × 2 =
  3. 3.1/9 ÷ 1/8 =
  4. 4.9.6 × 0.3 =
  5. 5.3.5 ÷ 0.5 =
  6. 6.1/8 × 10 =
  7. 7.2/7 × 2 =
  8. 8.4/5 × 13 =
  9. 9.4/7 × 12 =
  10. 10.One roll of ribbon has 6.7 m. How many m do 2 of them make in all? =
  11. 11.10.8 ÷ 8 =
  12. 12.13.58 ÷ 2 =
  13. 13.3/7 × 11 =
  14. 14.0.8 ÷ 0.2 =
  15. 15.4/7 × 8 =
  16. 16.3.6 × 0.4 =
  17. 17.4/7 × 14 =
  18. 18.3/4 ÷ 1/6 =
  19. 19.1/9 × 8 =
  20. 20.7/8 × 3/4 =
  21. 21.1/2 × 4/9 =
  22. 22.3.5 × 0.4 =
  23. 23.1/7 ÷ 8/9 =
  24. 24.7/9 ÷ 5/8 =
  25. 25.5/8 ÷ 1/2 =
  26. 26.12.64 ÷ 8 =
  27. 27.2.5 × 0.7 =
  28. 28.4/7 × 2 =
  29. 29.1/6 × 13 =
  30. 30.1.2 ÷ 0.6 =
  31. 31.2/5 × 5 =
  32. 32.1.1 × 0.2 =
  33. 33.1/7 × 1/4 =
  34. 34.1 ÷ 0.5 =
  35. 35.10.6 ÷ 5 =
  36. 36.1/9 × 14 =
  37. 37.6.3 ÷ 0.7 =
  38. 38.1/9 × 5/7 =
  39. 39.58.56 ÷ 8 =
  40. 40.2/9 × 2/7 =

Answer key

  1. 4/9
  2. 1
  3. 8/9
  4. 2.88
  5. 7
  6. 5/4
  7. 4/7
  8. 52/5
  9. 48/7
  10. 13.4
  11. 1.35
  12. 6.79
  13. 33/7
  14. 4
  15. 32/7
  16. 1.44
  17. 8
  18. 9/2
  19. 8/9
  20. 21/32
  21. 2/9
  22. 1.4
  23. 9/56
  24. 56/45
  25. 5/4
  26. 1.58
  27. 1.75
  28. 8/7
  29. 13/6
  30. 2
  31. 2
  32. 0.22
  33. 1/28
  34. 2
  35. 2.12
  36. 14/9
  37. 9
  38. 5/63
  39. 7.32
  40. 4/63

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