← 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 179 · 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. 1.4.5 ÷ 0.9 =
  2. 2.13.76 ÷ 2 =
  3. 3.22.44 ÷ 4 =
  4. 4.1/5 ÷ 3/5 =
  5. 5.29.36 ÷ 8 =
  6. 6.1/5 ÷ 1/2 =
  7. 7.1/9 ÷ 2/9 =
  8. 8.4.8 ÷ 0.6 =
  9. 9.1.6 ÷ 0.2 =
  10. 10.One bag of potatoes weighs 9.6 kg. How many kg do 7 of them make in all? =
  11. 11.2/5 × 1/6 =
  12. 12.2.1 ÷ 0.3 =
  13. 13.One jug of milk holds 3.9 L. How many L do 3 of them make in all? =
  14. 14.1/7 ÷ 7/8 =
  15. 15.2/5 × 2/9 =
  16. 16.1/7 × 1/4 =
  17. 17.17.38 ÷ 2 =
  18. 18.One roll of ribbon has 4.4 m. How many m do 5 of them make in all? =
  19. 19.One packet of rice weighs 6.4 kg. How many kg do 9 of them make in all? =
  20. 20.3/4 × 12 =
  21. 21.6.1 × 0.4 =
  22. 22.5/9 ÷ 1/6 =
  23. 23.8.7 × 0.7 =
  24. 24.One jug of milk holds 2.6 L. How many L do 4 of them make in all? =
  25. 25.1/6 × 12 =
  26. 26.3/5 ÷ 8/9 =
  27. 27.2/7 × 7 =
  28. 28.1.4 ÷ 0.7 =
  29. 29.2/5 × 2/5 =
  30. 30.25.55 ÷ 5 =
  31. 31.8/9 × 2/5 =
  32. 32.2/9 ÷ 1/2 =
  33. 33.1/4 × 3 =
  34. 34.2 ÷ 0.5 =
  35. 35.11.6 ÷ 5 =
  36. 36.One bottle of oil holds 5.1 L. How many L do 5 of them make in all? =
  37. 37.7/8 × 3/8 =
  38. 38.6.02 ÷ 2 =
  39. 39.One bottle of oil holds 2.6 L. How many L do 12 of them make in all? =
  40. 40.One roll of ribbon has 6.1 m. How many m do 5 of them make in all? =

Answer key

  1. 5
  2. 6.88
  3. 5.61
  4. 1/3
  5. 3.67
  6. 2/5
  7. 1/2
  8. 8
  9. 8
  10. 67.2
  11. 1/15
  12. 7
  13. 11.7
  14. 8/49
  15. 4/45
  16. 1/28
  17. 8.69
  18. 22
  19. 57.6
  20. 9
  21. 2.44
  22. 10/3
  23. 6.09
  24. 10.4
  25. 2
  26. 27/40
  27. 2
  28. 2
  29. 4/25
  30. 5.11
  31. 16/45
  32. 4/9
  33. 3/4
  34. 4
  35. 2.32
  36. 25.5
  37. 21/64
  38. 3.01
  39. 31.2
  40. 30.5

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