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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 123 · 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. 1.4.8 × 0.4 =
  2. 2.2/3 × 1/3 =
  3. 3.7/8 × 5/8 =
  4. 4.1/2 × 3/8 =
  5. 5.4/9 × 3 =
  6. 6.14 ÷ 4 =
  7. 7.1 ÷ 0.5 =
  8. 8.6.4 ÷ 0.8 =
  9. 9.27.36 ÷ 8 =
  10. 10.3/4 × 4 =
  11. 11.3/5 × 12 =
  12. 12.8/9 × 2/5 =
  13. 13.5/7 × 8 =
  14. 14.3.2 × 0.4 =
  15. 15.7.7 × 0.3 =
  16. 16.1/8 × 2/5 =
  17. 17.23.84 ÷ 8 =
  18. 18.2.4 ÷ 0.8 =
  19. 19.4/9 × 1/4 =
  20. 20.2/9 × 2 =
  21. 21.3/8 ÷ 3/5 =
  22. 22.6/7 ÷ 3/8 =
  23. 23.5/8 × 5 =
  24. 24.8/9 ÷ 5/7 =
  25. 25.7.36 ÷ 2 =
  26. 26.5/8 × 3 =
  27. 27.4/7 × 8 =
  28. 28.2.1 × 0.9 =
  29. 29.One packet of rice weighs 5.5 kg. How many kg do 8 of them make in all? =
  30. 30.1.2 × 0.5 =
  31. 31.2/3 ÷ 1/2 =
  32. 32.One roll of ribbon has 9.7 m. How many m do 11 of them make in all? =
  33. 33.31.76 ÷ 4 =
  34. 34.4/7 × 2 =
  35. 35.1 ÷ 0.2 =
  36. 36.4.9 ÷ 5 =
  37. 37.8/9 × 5 =
  38. 38.1/8 × 3 =
  39. 39.14.32 ÷ 4 =
  40. 40.7/8 ÷ 1/4 =

Answer key

  1. 1.92
  2. 2/9
  3. 35/64
  4. 3/16
  5. 4/3
  6. 3.5
  7. 2
  8. 8
  9. 3.42
  10. 3
  11. 36/5
  12. 16/45
  13. 40/7
  14. 1.28
  15. 2.31
  16. 1/20
  17. 2.98
  18. 3
  19. 1/9
  20. 4/9
  21. 5/8
  22. 16/7
  23. 25/8
  24. 56/45
  25. 3.68
  26. 15/8
  27. 32/7
  28. 1.89
  29. 44
  30. 0.6
  31. 4/3
  32. 106.7
  33. 7.94
  34. 8/7
  35. 5
  36. 0.98
  37. 40/9
  38. 3/8
  39. 3.58
  40. 7/2

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