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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 142 · 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. 1.8.6 × 0.6 =
  2. 2.1/6 × 5/9 =
  3. 3.9.3 × 0.3 =
  4. 4.3.52 ÷ 8 =
  5. 5.36.32 ÷ 8 =
  6. 6.28.84 ÷ 4 =
  7. 7.16.64 ÷ 2 =
  8. 8.3/5 × 14 =
  9. 9.4/9 × 2/9 =
  10. 10.3/7 ÷ 4/7 =
  11. 11.3/8 × 1/6 =
  12. 12.3/8 × 7 =
  13. 13.16.64 ÷ 4 =
  14. 14.One roll of ribbon has 3.3 m. How many m do 4 of them make in all? =
  15. 15.3/8 × 9 =
  16. 16.7/9 × 5 =
  17. 17.5/7 ÷ 6/7 =
  18. 18.1/5 ÷ 1/4 =
  19. 19.5/6 ÷ 5/6 =
  20. 20.1/3 × 4 =
  21. 21.6.4 × 0.9 =
  22. 22.1.7 × 0.9 =
  23. 23.One packet of rice weighs 9.2 kg. How many kg do 6 of them make in all? =
  24. 24.5.6 ÷ 0.8 =
  25. 25.One bottle of oil holds 6.5 L. How many L do 6 of them make in all? =
  26. 26.64.72 ÷ 8 =
  27. 27.1/5 × 1/2 =
  28. 28.3/4 × 7/8 =
  29. 29.8.4 ÷ 0.7 =
  30. 30.One packet of rice weighs 4.7 kg. How many kg do 6 of them make in all? =
  31. 31.60.16 ÷ 8 =
  32. 32.18.16 ÷ 8 =
  33. 33.3/8 × 5/6 =
  34. 34.5/7 × 14 =
  35. 35.0.6 × 0.8 =
  36. 36.6.6 × 0.4 =
  37. 37.5.7 × 0.2 =
  38. 38.0.9 ÷ 0.3 =
  39. 39.One roll of ribbon has 1.6 m. How many m do 5 of them make in all? =
  40. 40.5/9 × 1/4 =

Answer key

  1. 5.16
  2. 5/54
  3. 2.79
  4. 0.44
  5. 4.54
  6. 7.21
  7. 8.32
  8. 42/5
  9. 8/81
  10. 3/4
  11. 1/16
  12. 21/8
  13. 4.16
  14. 13.2
  15. 27/8
  16. 35/9
  17. 5/6
  18. 4/5
  19. 1
  20. 4/3
  21. 5.76
  22. 1.53
  23. 55.2
  24. 7
  25. 39
  26. 8.09
  27. 1/10
  28. 21/32
  29. 12
  30. 28.2
  31. 7.52
  32. 2.27
  33. 5/16
  34. 10
  35. 0.48
  36. 2.64
  37. 1.14
  38. 3
  39. 8
  40. 5/36

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