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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 1 · 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. 1.6.8 × 0.8 =
  2. 2.5.1 × 0.7 =
  3. 3.9.78 ÷ 2 =
  4. 4.2/3 × 3/5 =
  5. 5.2 ÷ 0.2 =
  6. 6.19.92 ÷ 4 =
  7. 7.One roll of ribbon has 6.2 m. How many m do 11 of them make in all? =
  8. 8.6/7 × 8 =
  9. 9.7.7 × 0.3 =
  10. 10.One roll of ribbon has 3.4 m. How many m do 2 of them make in all? =
  11. 11.1/2 × 2 =
  12. 12.1/9 ÷ 1/2 =
  13. 13.6.4 ÷ 0.8 =
  14. 14.6.6 ÷ 0.6 =
  15. 15.1/9 ÷ 4/5 =
  16. 16.12.28 ÷ 4 =
  17. 17.4/7 × 5/7 =
  18. 18.3/4 ÷ 1/4 =
  19. 19.One bag of potatoes weighs 6.7 kg. How many kg do 5 of them make in all? =
  20. 20.3/5 × 2/9 =
  21. 21.1/3 × 4/7 =
  22. 22.One roll of ribbon has 2.9 m. How many m do 7 of them make in all? =
  23. 23.5/7 × 1/4 =
  24. 24.8 ÷ 0.8 =
  25. 25.7.2 ÷ 0.8 =
  26. 26.2/3 × 3 =
  27. 27.1.7 × 0.7 =
  28. 28.5/8 ÷ 1/8 =
  29. 29.3/7 × 14 =
  30. 30.2/7 × 3/7 =
  31. 31.33.32 ÷ 4 =
  32. 32.4/9 ÷ 2/7 =
  33. 33.4/9 × 1/3 =
  34. 34.7.8 × 0.7 =
  35. 35.2.1 × 0.4 =
  36. 36.1/4 ÷ 3/5 =
  37. 37.2.9 × 0.6 =
  38. 38.5/8 × 14 =
  39. 39.49.35 ÷ 5 =
  40. 40.2/3 × 12 =

Answer key

  1. 5.44
  2. 3.57
  3. 4.89
  4. 2/5
  5. 10
  6. 4.98
  7. 68.2
  8. 48/7
  9. 2.31
  10. 6.8
  11. 1
  12. 2/9
  13. 8
  14. 11
  15. 5/36
  16. 3.07
  17. 20/49
  18. 3
  19. 33.5
  20. 2/15
  21. 4/21
  22. 20.3
  23. 5/28
  24. 10
  25. 9
  26. 2
  27. 1.19
  28. 5
  29. 6
  30. 6/49
  31. 8.33
  32. 14/9
  33. 4/27
  34. 5.46
  35. 0.84
  36. 5/12
  37. 1.74
  38. 35/4
  39. 9.87
  40. 8

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