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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 114 · 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. 1.1/7 × 2 =
  2. 2.9.7 × 0.5 =
  3. 3.77.52 ÷ 8 =
  4. 4.One packet of rice weighs 1.5 kg. How many kg do 6 of them make in all? =
  5. 5.One packet of rice weighs 2 kg. How many kg do 4 of them make in all? =
  6. 6.1/8 × 1/8 =
  7. 7.One roll of ribbon has 4.9 m. How many m do 7 of them make in all? =
  8. 8.One packet of rice weighs 9.7 kg. How many kg do 6 of them make in all? =
  9. 9.1/9 × 3 =
  10. 10.One bottle of oil holds 7.8 L. How many L do 2 of them make in all? =
  11. 11.22.24 ÷ 4 =
  12. 12.1/4 × 7/9 =
  13. 13.9.84 ÷ 8 =
  14. 14.8.88 ÷ 8 =
  15. 15.1 ÷ 0.5 =
  16. 16.6.36 ÷ 2 =
  17. 17.3/4 × 7 =
  18. 18.1/7 × 8 =
  19. 19.0.8 × 0.6 =
  20. 20.3/7 × 4 =
  21. 21.1.2 ÷ 0.6 =
  22. 22.2/9 ÷ 4/9 =
  23. 23.1/9 ÷ 3/4 =
  24. 24.2.1 × 0.3 =
  25. 25.1/3 × 1/7 =
  26. 26.1/7 × 5 =
  27. 27.2/5 ÷ 3/7 =
  28. 28.4/7 ÷ 2/5 =
  29. 29.5/8 × 15 =
  30. 30.5/8 ÷ 8/9 =
  31. 31.7.1 × 0.6 =
  32. 32.5/7 × 3/8 =
  33. 33.2.7 ÷ 0.3 =
  34. 34.8 ÷ 0.8 =
  35. 35.22.8 ÷ 8 =
  36. 36.2.4 ÷ 0.4 =
  37. 37.7.32 ÷ 4 =
  38. 38.8.3 ÷ 2 =
  39. 39.1/7 × 5/7 =
  40. 40.One packet of rice weighs 7.2 kg. How many kg do 6 of them make in all? =

Answer key

  1. 2/7
  2. 4.85
  3. 9.69
  4. 9
  5. 8
  6. 1/64
  7. 34.3
  8. 58.2
  9. 1/3
  10. 15.6
  11. 5.56
  12. 7/36
  13. 1.23
  14. 1.11
  15. 2
  16. 3.18
  17. 21/4
  18. 8/7
  19. 0.48
  20. 12/7
  21. 2
  22. 1/2
  23. 4/27
  24. 0.63
  25. 1/21
  26. 5/7
  27. 14/15
  28. 10/7
  29. 75/8
  30. 45/64
  31. 4.26
  32. 15/56
  33. 9
  34. 10
  35. 2.85
  36. 6
  37. 1.83
  38. 4.15
  39. 5/49
  40. 43.2

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