← 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 337 · 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. 1.41.55 ÷ 5 =
  2. 2.2 ÷ 0.5 =
  3. 3.5 ÷ 0.5 =
  4. 4.1/8 ÷ 2/3 =
  5. 5.1/2 × 7/9 =
  6. 6.7.2 ÷ 0.6 =
  7. 7.3/5 ÷ 3/7 =
  8. 8.2/5 ÷ 4/5 =
  9. 9.1/3 × 12 =
  10. 10.20.8 ÷ 8 =
  11. 11.5/7 ÷ 2/7 =
  12. 12.7/9 × 5 =
  13. 13.One roll of ribbon has 6.2 m. How many m do 12 of them make in all? =
  14. 14.3/5 × 1/5 =
  15. 15.4/7 × 6/7 =
  16. 16.1.8 ÷ 0.9 =
  17. 17.7/8 ÷ 3/7 =
  18. 18.2/3 × 14 =
  19. 19.7.5 × 0.4 =
  20. 20.3/7 × 15 =
  21. 21.2.8 ÷ 0.4 =
  22. 22.1.6 ÷ 0.8 =
  23. 23.One packet of rice weighs 9 kg. How many kg do 10 of them make in all? =
  24. 24.One bag of potatoes weighs 3.4 kg. How many kg do 6 of them make in all? =
  25. 25.3/5 × 7/9 =
  26. 26.8.4 ÷ 0.7 =
  27. 27.2/7 × 1/9 =
  28. 28.3.76 ÷ 8 =
  29. 29.6/7 × 3/8 =
  30. 30.18.95 ÷ 5 =
  31. 31.2/5 × 3/5 =
  32. 32.One bag of potatoes weighs 3.7 kg. How many kg do 9 of them make in all? =
  33. 33.One bag of potatoes weighs 5.9 kg. How many kg do 4 of them make in all? =
  34. 34.15.02 ÷ 2 =
  35. 35.5.6 ÷ 0.8 =
  36. 36.6/7 ÷ 4/5 =
  37. 37.2/3 ÷ 6/7 =
  38. 38.4/7 ÷ 4/9 =
  39. 39.One jug of milk holds 3.5 L. How many L do 2 of them make in all? =
  40. 40.2/9 ÷ 5/9 =

Answer key

  1. 8.31
  2. 4
  3. 10
  4. 3/16
  5. 7/18
  6. 12
  7. 7/5
  8. 1/2
  9. 4
  10. 2.6
  11. 5/2
  12. 35/9
  13. 74.4
  14. 3/25
  15. 24/49
  16. 2
  17. 49/24
  18. 28/3
  19. 3
  20. 45/7
  21. 7
  22. 2
  23. 90
  24. 20.4
  25. 7/15
  26. 12
  27. 2/63
  28. 0.47
  29. 9/28
  30. 3.79
  31. 6/25
  32. 33.3
  33. 23.6
  34. 7.51
  35. 7
  36. 15/14
  37. 7/9
  38. 9/7
  39. 7
  40. 2/5

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