← 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 515 · 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. 1.3/8 × 5/9 =
  2. 2.One bottle of oil holds 7.6 L. How many L do 10 of them make in all? =
  3. 3.0.56 ÷ 2 =
  4. 4.One roll of ribbon has 9.5 m. How many m do 10 of them make in all? =
  5. 5.2.8 ÷ 0.4 =
  6. 6.1/9 ÷ 7/9 =
  7. 7.4/9 ÷ 8/9 =
  8. 8.7/9 ÷ 3/7 =
  9. 9.2/5 × 1/8 =
  10. 10.39.75 ÷ 5 =
  11. 11.9.6 ÷ 5 =
  12. 12.2.36 ÷ 2 =
  13. 13.0.7 × 0.5 =
  14. 14.39.84 ÷ 8 =
  15. 15.One roll of ribbon has 2.8 m. How many m do 12 of them make in all? =
  16. 16.18.14 ÷ 2 =
  17. 17.2/3 ÷ 2/5 =
  18. 18.One packet of rice weighs 9.2 kg. How many kg do 4 of them make in all? =
  19. 19.4/5 ÷ 1/4 =
  20. 20.1/3 × 2/7 =
  21. 21.2.4 ÷ 0.8 =
  22. 22.1/4 × 1/5 =
  23. 23.1/2 × 1/7 =
  24. 24.7/8 ÷ 4/7 =
  25. 25.1.3 × 0.6 =
  26. 26.One roll of ribbon has 3.3 m. How many m do 11 of them make in all? =
  27. 27.1/5 ÷ 1/5 =
  28. 28.4.2 ÷ 0.6 =
  29. 29.3.6 × 0.8 =
  30. 30.2.52 ÷ 2 =
  31. 31.1/9 × 3 =
  32. 32.4.5 ÷ 0.9 =
  33. 33.2.4 ÷ 0.6 =
  34. 34.2/9 × 2/7 =
  35. 35.3/7 ÷ 1/2 =
  36. 36.6.8 × 0.3 =
  37. 37.1.52 ÷ 2 =
  38. 38.One roll of ribbon has 9.5 m. How many m do 5 of them make in all? =
  39. 39.3/5 × 5/7 =
  40. 40.One bottle of oil holds 4.8 L. How many L do 10 of them make in all? =

Answer key

  1. 5/24
  2. 76
  3. 0.28
  4. 95
  5. 7
  6. 1/7
  7. 1/2
  8. 49/27
  9. 1/20
  10. 7.95
  11. 1.92
  12. 1.18
  13. 0.35
  14. 4.98
  15. 33.6
  16. 9.07
  17. 5/3
  18. 36.8
  19. 16/5
  20. 2/21
  21. 3
  22. 1/20
  23. 1/14
  24. 49/32
  25. 0.78
  26. 36.3
  27. 1
  28. 7
  29. 2.88
  30. 1.26
  31. 1/3
  32. 5
  33. 4
  34. 4/63
  35. 6/7
  36. 2.04
  37. 0.76
  38. 47.5
  39. 3/7
  40. 48

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