← 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 373 · 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. 1.4/9 × 5 =
  2. 2.4/9 × 3/7 =
  3. 3.4/9 × 1/6 =
  4. 4.2.7 × 0.6 =
  5. 5.One bottle of oil holds 6.7 L. How many L do 9 of them make in all? =
  6. 6.3/8 × 5 =
  7. 7.5/6 × 4/9 =
  8. 8.4/7 × 3/8 =
  9. 9.19.6 ÷ 5 =
  10. 10.One jug of milk holds 4.9 L. How many L do 7 of them make in all? =
  11. 11.5/6 × 7 =
  12. 12.7.2 ÷ 0.6 =
  13. 13.8.15 ÷ 5 =
  14. 14.2/3 ÷ 5/9 =
  15. 15.One packet of rice weighs 8.1 kg. How many kg do 10 of them make in all? =
  16. 16.One bottle of oil holds 4.5 L. How many L do 3 of them make in all? =
  17. 17.1/9 × 4/5 =
  18. 18.2.8 × 0.9 =
  19. 19.7.92 ÷ 4 =
  20. 20.One jug of milk holds 3.6 L. How many L do 5 of them make in all? =
  21. 21.3/4 ÷ 5/9 =
  22. 22.One bottle of oil holds 9.5 L. How many L do 11 of them make in all? =
  23. 23.4/5 × 10 =
  24. 24.2.8 × 0.5 =
  25. 25.5.9 × 0.2 =
  26. 26.2/3 ÷ 3/8 =
  27. 27.3/4 × 1/5 =
  28. 28.9.54 ÷ 2 =
  29. 29.1/5 ÷ 1/6 =
  30. 30.1.2 ÷ 0.6 =
  31. 31.3/8 × 13 =
  32. 32.1/8 × 2/3 =
  33. 33.2/5 × 8 =
  34. 34.One bag of potatoes weighs 7.3 kg. How many kg do 10 of them make in all? =
  35. 35.One jug of milk holds 1.4 L. How many L do 3 of them make in all? =
  36. 36.7/9 ÷ 3/8 =
  37. 37.One packet of rice weighs 2.6 kg. How many kg do 4 of them make in all? =
  38. 38.2.7 ÷ 0.9 =
  39. 39.4/9 ÷ 1/5 =
  40. 40.3.6 ÷ 0.9 =

Answer key

  1. 20/9
  2. 4/21
  3. 2/27
  4. 1.62
  5. 60.3
  6. 15/8
  7. 10/27
  8. 3/14
  9. 3.92
  10. 34.3
  11. 35/6
  12. 12
  13. 1.63
  14. 6/5
  15. 81
  16. 13.5
  17. 4/45
  18. 2.52
  19. 1.98
  20. 18
  21. 27/20
  22. 104.5
  23. 8
  24. 1.4
  25. 1.18
  26. 16/9
  27. 3/20
  28. 4.77
  29. 6/5
  30. 2
  31. 39/8
  32. 1/12
  33. 16/5
  34. 73
  35. 4.2
  36. 56/27
  37. 10.4
  38. 3
  39. 20/9
  40. 4

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