← 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 448 · 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. 1.8.8 ÷ 0.8 =
  2. 2.1.9 × 0.3 =
  3. 3.1.9 × 0.6 =
  4. 4.1/5 × 1/6 =
  5. 5.1/9 × 2 =
  6. 6.4/9 × 8 =
  7. 7.3/7 × 13 =
  8. 8.2/7 × 7/9 =
  9. 9.7/9 × 2 =
  10. 10.One bag of potatoes weighs 8.7 kg. How many kg do 6 of them make in all? =
  11. 11.2/7 ÷ 2/7 =
  12. 12.5.4 ÷ 0.6 =
  13. 13.8/9 ÷ 1/3 =
  14. 14.8.85 ÷ 5 =
  15. 15.7/8 × 11 =
  16. 16.5/8 × 3 =
  17. 17.One bottle of oil holds 5.6 L. How many L do 12 of them make in all? =
  18. 18.One packet of rice weighs 7.7 kg. How many kg do 3 of them make in all? =
  19. 19.One roll of ribbon has 5.6 m. How many m do 10 of them make in all? =
  20. 20.2/3 × 1/8 =
  21. 21.One jug of milk holds 1.2 L. How many L do 3 of them make in all? =
  22. 22.2.5 × 0.8 =
  23. 23.5/8 ÷ 2/9 =
  24. 24.4 ÷ 0.5 =
  25. 25.4.2 ÷ 0.6 =
  26. 26.1.6 ÷ 0.8 =
  27. 27.One roll of ribbon has 8.4 m. How many m do 12 of them make in all? =
  28. 28.2.4 ÷ 0.2 =
  29. 29.One bottle of oil holds 4.6 L. How many L do 9 of them make in all? =
  30. 30.6/7 ÷ 6/7 =
  31. 31.1/2 × 1/3 =
  32. 32.8.4 ÷ 0.7 =
  33. 33.4.1 × 0.2 =
  34. 34.3.6 ÷ 0.4 =
  35. 35.3.6 ÷ 0.3 =
  36. 36.1/5 × 7 =
  37. 37.1/2 ÷ 1/2 =
  38. 38.2/7 × 3 =
  39. 39.0.9 × 0.7 =
  40. 40.7/9 ÷ 7/9 =

Answer key

  1. 11
  2. 0.57
  3. 1.14
  4. 1/30
  5. 2/9
  6. 32/9
  7. 39/7
  8. 2/9
  9. 14/9
  10. 52.2
  11. 1
  12. 9
  13. 8/3
  14. 1.77
  15. 77/8
  16. 15/8
  17. 67.2
  18. 23.1
  19. 56
  20. 1/12
  21. 3.6
  22. 2
  23. 45/16
  24. 8
  25. 7
  26. 2
  27. 100.8
  28. 12
  29. 41.4
  30. 1
  31. 1/6
  32. 12
  33. 0.82
  34. 9
  35. 12
  36. 7/5
  37. 1
  38. 6/7
  39. 0.63
  40. 1

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