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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 492 · 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. 1.7.2 × 0.7 =
  2. 2.5/8 × 5 =
  3. 3.6.6 ÷ 0.6 =
  4. 4.3/4 × 2/3 =
  5. 5.2/9 × 14 =
  6. 6.2/9 ÷ 2/7 =
  7. 7.5.6 ÷ 0.7 =
  8. 8.3/8 ÷ 4/7 =
  9. 9.3/5 × 15 =
  10. 10.1/8 × 13 =
  11. 11.1 ÷ 2 =
  12. 12.1/3 ÷ 2/5 =
  13. 13.4/9 × 7/8 =
  14. 14.3.2 ÷ 0.4 =
  15. 15.One bottle of oil holds 7.6 L. How many L do 9 of them make in all? =
  16. 16.3.3 ÷ 0.3 =
  17. 17.7/9 × 14 =
  18. 18.1.8 ÷ 0.6 =
  19. 19.One packet of rice weighs 6.3 kg. How many kg do 9 of them make in all? =
  20. 20.2.4 ÷ 0.3 =
  21. 21.3/5 ÷ 4/5 =
  22. 22.9.6 × 0.4 =
  23. 23.One packet of rice weighs 4 kg. How many kg do 8 of them make in all? =
  24. 24.69.68 ÷ 8 =
  25. 25.1/2 × 1/7 =
  26. 26.2.3 × 0.9 =
  27. 27.5/8 × 7 =
  28. 28.28.45 ÷ 5 =
  29. 29.5/6 × 5/9 =
  30. 30.3/5 ÷ 1/4 =
  31. 31.2.3 × 0.8 =
  32. 32.7.7 ÷ 0.7 =
  33. 33.One bag of potatoes weighs 3.3 kg. How many kg do 6 of them make in all? =
  34. 34.2.2 ÷ 0.2 =
  35. 35.2/9 ÷ 3/8 =
  36. 36.2.5 × 0.6 =
  37. 37.2/3 × 3/8 =
  38. 38.2/7 × 6 =
  39. 39.7/9 × 2 =
  40. 40.7.1 ÷ 5 =

Answer key

  1. 5.04
  2. 25/8
  3. 11
  4. 1/2
  5. 28/9
  6. 7/9
  7. 8
  8. 21/32
  9. 9
  10. 13/8
  11. 0.5
  12. 5/6
  13. 7/18
  14. 8
  15. 68.4
  16. 11
  17. 98/9
  18. 3
  19. 56.7
  20. 8
  21. 3/4
  22. 3.84
  23. 32
  24. 8.71
  25. 1/14
  26. 2.07
  27. 35/8
  28. 5.69
  29. 25/54
  30. 12/5
  31. 1.84
  32. 11
  33. 19.8
  34. 11
  35. 16/27
  36. 1.5
  37. 1/4
  38. 12/7
  39. 14/9
  40. 1.42

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