← Fractions and decimals: multiply and divide lesson New set →

Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 64 · 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.One packet of rice weighs 6.4 kg. How many kg do 8 of them make in all? =
  2. 2.0.1 × 0.7 =
  3. 3.7/9 × 7 =
  4. 4.5/9 × 1/4 =
  5. 5.2/5 × 7 =
  6. 6.4.9 × 0.3 =
  7. 7.7.86 ÷ 2 =
  8. 8.2.7 × 0.6 =
  9. 9.4.8 ÷ 0.4 =
  10. 10.One bottle of oil holds 4.7 L. How many L do 6 of them make in all? =
  11. 11.5/9 × 3/8 =
  12. 12.1/4 × 4/9 =
  13. 13.1/6 ÷ 3/5 =
  14. 14.One roll of ribbon has 2.4 m. How many m do 7 of them make in all? =
  15. 15.1/5 × 2/3 =
  16. 16.5.6 ÷ 0.8 =
  17. 17.3/5 × 3 =
  18. 18.1.1 × 0.4 =
  19. 19.1/4 ÷ 5/9 =
  20. 20.2/7 × 3 =
  21. 21.4/5 × 3/4 =
  22. 22.3/4 ÷ 3/4 =
  23. 23.2 ÷ 0.2 =
  24. 24.5/6 × 1/7 =
  25. 25.One packet of rice weighs 9.8 kg. How many kg do 3 of them make in all? =
  26. 26.8 ÷ 0.8 =
  27. 27.7.4 × 0.6 =
  28. 28.2.8 ÷ 0.4 =
  29. 29.One bottle of oil holds 6.3 L. How many L do 5 of them make in all? =
  30. 30.1/4 × 10 =
  31. 31.1/6 ÷ 1/4 =
  32. 32.3/5 × 12 =
  33. 33.7/9 × 1/8 =
  34. 34.One bottle of oil holds 2.9 L. How many L do 7 of them make in all? =
  35. 35.1.9 × 0.4 =
  36. 36.2/9 × 4/9 =
  37. 37.2/3 × 1/8 =
  38. 38.One packet of rice weighs 3.8 kg. How many kg do 7 of them make in all? =
  39. 39.3/5 ÷ 3/4 =
  40. 40.5/9 ÷ 5/6 =

Answer key

  1. 51.2
  2. 0.07
  3. 49/9
  4. 5/36
  5. 14/5
  6. 1.47
  7. 3.93
  8. 1.62
  9. 12
  10. 28.2
  11. 5/24
  12. 1/9
  13. 5/18
  14. 16.8
  15. 2/15
  16. 7
  17. 9/5
  18. 0.44
  19. 9/20
  20. 6/7
  21. 3/5
  22. 1
  23. 10
  24. 5/42
  25. 29.4
  26. 10
  27. 4.44
  28. 7
  29. 31.5
  30. 5/2
  31. 2/3
  32. 36/5
  33. 7/72
  34. 20.3
  35. 0.76
  36. 8/81
  37. 1/12
  38. 26.6
  39. 4/5
  40. 2/3

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets