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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 31 · 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. 1.1/4 × 4/7 =
  2. 2.34.64 ÷ 4 =
  3. 3.2.4 ÷ 0.8 =
  4. 4.16.58 ÷ 2 =
  5. 5.2.4 ÷ 0.6 =
  6. 6.0.2 × 0.8 =
  7. 7.2/7 ÷ 7/9 =
  8. 8.44.24 ÷ 8 =
  9. 9.8/9 × 5/9 =
  10. 10.6/7 × 5/8 =
  11. 11.6/7 × 5 =
  12. 12.60.72 ÷ 8 =
  13. 13.1.4 ÷ 0.7 =
  14. 14.8/9 ÷ 3/4 =
  15. 15.One packet of rice weighs 3.7 kg. How many kg do 9 of them make in all? =
  16. 16.2 ÷ 0.2 =
  17. 17.One bottle of oil holds 2 L. How many L do 8 of them make in all? =
  18. 18.1/4 × 1/2 =
  19. 19.3/7 × 1/8 =
  20. 20.One roll of ribbon has 9.3 m. How many m do 12 of them make in all? =
  21. 21.One bag of potatoes weighs 8.9 kg. How many kg do 10 of them make in all? =
  22. 22.9.6 ÷ 0.8 =
  23. 23.4/5 ÷ 1/2 =
  24. 24.3/8 × 10 =
  25. 25.1/5 ÷ 4/5 =
  26. 26.3.2 ÷ 0.4 =
  27. 27.8/9 ÷ 4/5 =
  28. 28.6/7 × 3 =
  29. 29.6/7 ÷ 1/9 =
  30. 30.5/8 × 2 =
  31. 31.3/8 × 5 =
  32. 32.4/7 ÷ 2/5 =
  33. 33.1/7 × 1/8 =
  34. 34.One jug of milk holds 1.2 L. How many L do 12 of them make in all? =
  35. 35.4/7 × 6 =
  36. 36.6.2 × 0.2 =
  37. 37.4/7 ÷ 1/5 =
  38. 38.1/9 × 4/9 =
  39. 39.1/2 ÷ 5/8 =
  40. 40.8/9 × 2/7 =

Answer key

  1. 1/7
  2. 8.66
  3. 3
  4. 8.29
  5. 4
  6. 0.16
  7. 18/49
  8. 5.53
  9. 40/81
  10. 15/28
  11. 30/7
  12. 7.59
  13. 2
  14. 32/27
  15. 33.3
  16. 10
  17. 16
  18. 1/8
  19. 3/56
  20. 111.6
  21. 89
  22. 12
  23. 8/5
  24. 15/4
  25. 1/4
  26. 8
  27. 10/9
  28. 18/7
  29. 54/7
  30. 5/4
  31. 15/8
  32. 10/7
  33. 1/56
  34. 14.4
  35. 24/7
  36. 1.24
  37. 20/7
  38. 4/81
  39. 4/5
  40. 16/63

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