← 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 558 · 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. 1.1.5 ÷ 5 =
  2. 2.0.9 ÷ 0.3 =
  3. 3.4/7 × 11 =
  4. 4.7.2 ÷ 0.9 =
  5. 5.2/3 ÷ 7/8 =
  6. 6.One roll of ribbon has 7.4 m. How many m do 4 of them make in all? =
  7. 7.6.4 × 0.4 =
  8. 8.One bag of potatoes weighs 7.9 kg. How many kg do 3 of them make in all? =
  9. 9.4/5 × 5/9 =
  10. 10.6.3 ÷ 0.9 =
  11. 11.4/9 ÷ 8/9 =
  12. 12.2.9 × 0.9 =
  13. 13.19.76 ÷ 8 =
  14. 14.5/6 ÷ 7/9 =
  15. 15.8/9 × 9 =
  16. 16.4/9 × 8 =
  17. 17.0.8 × 0.6 =
  18. 18.1/2 × 2/3 =
  19. 19.2/7 ÷ 1/6 =
  20. 20.One bottle of oil holds 4.8 L. How many L do 10 of them make in all? =
  21. 21.5.86 ÷ 2 =
  22. 22.One packet of rice weighs 1.7 kg. How many kg do 6 of them make in all? =
  23. 23.2/3 × 5 =
  24. 24.2/3 × 2/3 =
  25. 25.1/2 × 7 =
  26. 26.3/4 × 4 =
  27. 27.7/8 × 7/9 =
  28. 28.10.12 ÷ 2 =
  29. 29.7/8 × 7 =
  30. 30.6/7 × 13 =
  31. 31.One bottle of oil holds 2.4 L. How many L do 4 of them make in all? =
  32. 32.2/3 ÷ 1/7 =
  33. 33.One roll of ribbon has 3.1 m. How many m do 7 of them make in all? =
  34. 34.5/6 × 7 =
  35. 35.11.92 ÷ 4 =
  36. 36.5/6 ÷ 4/5 =
  37. 37.One jug of milk holds 6.1 L. How many L do 11 of them make in all? =
  38. 38.3.6 ÷ 0.9 =
  39. 39.36.4 ÷ 8 =
  40. 40.4 ÷ 2 =

Answer key

  1. 0.3
  2. 3
  3. 44/7
  4. 8
  5. 16/21
  6. 29.6
  7. 2.56
  8. 23.7
  9. 4/9
  10. 7
  11. 1/2
  12. 2.61
  13. 2.47
  14. 15/14
  15. 8
  16. 32/9
  17. 0.48
  18. 1/3
  19. 12/7
  20. 48
  21. 2.93
  22. 10.2
  23. 10/3
  24. 4/9
  25. 7/2
  26. 3
  27. 49/72
  28. 5.06
  29. 49/8
  30. 78/7
  31. 9.6
  32. 14/3
  33. 21.7
  34. 35/6
  35. 2.98
  36. 25/24
  37. 67.1
  38. 4
  39. 4.55
  40. 2

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