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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 434 · 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. 1.3/8 ÷ 7/8 =
  2. 2.4/7 ÷ 1/4 =
  3. 3.1/4 × 1/4 =
  4. 4.One bag of potatoes weighs 8.9 kg. How many kg do 10 of them make in all? =
  5. 5.6/7 × 8 =
  6. 6.2/9 ÷ 2/9 =
  7. 7.7/9 × 3/8 =
  8. 8.6.7 × 0.4 =
  9. 9.4/7 ÷ 4/9 =
  10. 10.5/9 × 2/3 =
  11. 11.2.4 ÷ 0.8 =
  12. 12.4/5 × 14 =
  13. 13.8.3 × 0.8 =
  14. 14.2/3 × 3 =
  15. 15.1/7 × 3/5 =
  16. 16.3/5 × 4/7 =
  17. 17.One bag of potatoes weighs 4.1 kg. How many kg do 10 of them make in all? =
  18. 18.One jug of milk holds 2.2 L. How many L do 5 of them make in all? =
  19. 19.5/8 ÷ 1/5 =
  20. 20.5.8 × 0.2 =
  21. 21.2/3 ÷ 5/6 =
  22. 22.5/7 ÷ 2/9 =
  23. 23.3.3 ÷ 0.3 =
  24. 24.One roll of ribbon has 6.7 m. How many m do 5 of them make in all? =
  25. 25.1/5 ÷ 1/2 =
  26. 26.3.2 × 0.5 =
  27. 27.0.2 × 0.7 =
  28. 28.5.76 ÷ 2 =
  29. 29.1/2 × 2/3 =
  30. 30.3.2 ÷ 0.8 =
  31. 31.0.8 ÷ 0.2 =
  32. 32.1.2 ÷ 0.3 =
  33. 33.17.94 ÷ 2 =
  34. 34.2/9 ÷ 3/7 =
  35. 35.4.92 ÷ 2 =
  36. 36.5/9 ÷ 1/7 =
  37. 37.9.7 × 0.8 =
  38. 38.5/7 × 4 =
  39. 39.4.5 × 0.2 =
  40. 40.3/8 × 6 =

Answer key

  1. 3/7
  2. 16/7
  3. 1/16
  4. 89
  5. 48/7
  6. 1
  7. 7/24
  8. 2.68
  9. 9/7
  10. 10/27
  11. 3
  12. 56/5
  13. 6.64
  14. 2
  15. 3/35
  16. 12/35
  17. 41
  18. 11
  19. 25/8
  20. 1.16
  21. 4/5
  22. 45/14
  23. 11
  24. 33.5
  25. 2/5
  26. 1.6
  27. 0.14
  28. 2.88
  29. 1/3
  30. 4
  31. 4
  32. 4
  33. 8.97
  34. 14/27
  35. 2.46
  36. 35/9
  37. 7.76
  38. 20/7
  39. 0.9
  40. 9/4

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