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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 262 · 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. 1.4/7 ÷ 3/5 =
  2. 2.5.52 ÷ 4 =
  3. 3.One jug of milk holds 2.6 L. How many L do 3 of them make in all? =
  4. 4.10.88 ÷ 8 =
  5. 5.2/9 × 14 =
  6. 6.5/8 × 2/9 =
  7. 7.1.3 × 0.3 =
  8. 8.1/3 ÷ 5/8 =
  9. 9.3/8 × 3/7 =
  10. 10.8/9 × 1/7 =
  11. 11.One roll of ribbon has 2.2 m. How many m do 10 of them make in all? =
  12. 12.3.5 ÷ 0.5 =
  13. 13.5/7 × 14 =
  14. 14.3/5 × 1/6 =
  15. 15.7/8 × 2/3 =
  16. 16.65.36 ÷ 8 =
  17. 17.1/2 × 7 =
  18. 18.29.24 ÷ 4 =
  19. 19.4/9 × 15 =
  20. 20.4/7 × 3/8 =
  21. 21.One jug of milk holds 6.2 L. How many L do 11 of them make in all? =
  22. 22.3/5 × 9 =
  23. 23.One packet of rice weighs 5.1 kg. How many kg do 2 of them make in all? =
  24. 24.1.2 ÷ 0.4 =
  25. 25.One bottle of oil holds 2.5 L. How many L do 9 of them make in all? =
  26. 26.One bottle of oil holds 5.5 L. How many L do 2 of them make in all? =
  27. 27.2/3 × 1/8 =
  28. 28.4/7 ÷ 1/4 =
  29. 29.7.3 × 0.8 =
  30. 30.One roll of ribbon has 2.3 m. How many m do 3 of them make in all? =
  31. 31.4 ÷ 0.4 =
  32. 32.One bottle of oil holds 5.5 L. How many L do 4 of them make in all? =
  33. 33.One packet of rice weighs 1.6 kg. How many kg do 5 of them make in all? =
  34. 34.7.3 ÷ 5 =
  35. 35.0.6 × 0.6 =
  36. 36.2/3 × 5 =
  37. 37.4.6 × 0.6 =
  38. 38.1.3 × 0.8 =
  39. 39.One bag of potatoes weighs 2.5 kg. How many kg do 2 of them make in all? =
  40. 40.One bottle of oil holds 5.2 L. How many L do 2 of them make in all? =

Answer key

  1. 20/21
  2. 1.38
  3. 7.8
  4. 1.36
  5. 28/9
  6. 5/36
  7. 0.39
  8. 8/15
  9. 9/56
  10. 8/63
  11. 22
  12. 7
  13. 10
  14. 1/10
  15. 7/12
  16. 8.17
  17. 7/2
  18. 7.31
  19. 20/3
  20. 3/14
  21. 68.2
  22. 27/5
  23. 10.2
  24. 3
  25. 22.5
  26. 11
  27. 1/12
  28. 16/7
  29. 5.84
  30. 6.9
  31. 10
  32. 22
  33. 8
  34. 1.46
  35. 0.36
  36. 10/3
  37. 2.76
  38. 1.04
  39. 5
  40. 10.4

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