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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 188 · 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. 1.5.66 ÷ 2 =
  2. 2.1/3 ÷ 5/7 =
  3. 3.3.86 ÷ 2 =
  4. 4.3/5 × 15 =
  5. 5.1.2 ÷ 0.4 =
  6. 6.16.88 ÷ 2 =
  7. 7.1.6 ÷ 0.4 =
  8. 8.1/6 × 1/2 =
  9. 9.3/8 × 1/5 =
  10. 10.2.7 ÷ 0.3 =
  11. 11.9.92 ÷ 4 =
  12. 12.2/3 × 3 =
  13. 13.One packet of rice weighs 2.9 kg. How many kg do 10 of them make in all? =
  14. 14.1.2 ÷ 0.2 =
  15. 15.4/9 × 10 =
  16. 16.One jug of milk holds 1.4 L. How many L do 3 of them make in all? =
  17. 17.One bottle of oil holds 2.6 L. How many L do 11 of them make in all? =
  18. 18.2/5 ÷ 1/2 =
  19. 19.7/8 × 3/7 =
  20. 20.6/7 × 5 =
  21. 21.One jug of milk holds 5.8 L. How many L do 7 of them make in all? =
  22. 22.One packet of rice weighs 8.7 kg. How many kg do 5 of them make in all? =
  23. 23.7/9 × 2/7 =
  24. 24.1/2 ÷ 5/9 =
  25. 25.8/9 × 14 =
  26. 26.7.5 × 0.4 =
  27. 27.1/7 × 5/7 =
  28. 28.2/9 × 1/7 =
  29. 29.9.5 × 0.9 =
  30. 30.5.7 × 0.9 =
  31. 31.6/7 × 6 =
  32. 32.2/3 × 7 =
  33. 33.7/9 × 5/6 =
  34. 34.1/8 × 5/7 =
  35. 35.1/6 ÷ 3/8 =
  36. 36.6.3 ÷ 0.7 =
  37. 37.1.9 × 0.4 =
  38. 38.5/8 × 2 =
  39. 39.1/8 × 5 =
  40. 40.7/9 × 4 =

Answer key

  1. 2.83
  2. 7/15
  3. 1.93
  4. 9
  5. 3
  6. 8.44
  7. 4
  8. 1/12
  9. 3/40
  10. 9
  11. 2.48
  12. 2
  13. 29
  14. 6
  15. 40/9
  16. 4.2
  17. 28.6
  18. 4/5
  19. 3/8
  20. 30/7
  21. 40.6
  22. 43.5
  23. 2/9
  24. 9/10
  25. 112/9
  26. 3
  27. 5/49
  28. 2/63
  29. 8.55
  30. 5.13
  31. 36/7
  32. 14/3
  33. 35/54
  34. 5/56
  35. 4/9
  36. 9
  37. 0.76
  38. 5/4
  39. 5/8
  40. 28/9

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