← 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 38 · 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. 1.2.7 ÷ 0.3 =
  2. 2.7/8 ÷ 1/6 =
  3. 3.One jug of milk holds 1.8 L. How many L do 7 of them make in all? =
  4. 4.4/5 × 4 =
  5. 5.34.56 ÷ 8 =
  6. 6.5/7 ÷ 3/5 =
  7. 7.6 ÷ 0.6 =
  8. 8.4/9 × 13 =
  9. 9.3.2 × 0.5 =
  10. 10.3.78 ÷ 2 =
  11. 11.3/7 ÷ 4/5 =
  12. 12.1/2 ÷ 2/3 =
  13. 13.One jug of milk holds 4.1 L. How many L do 3 of them make in all? =
  14. 14.9.55 ÷ 5 =
  15. 15.One jug of milk holds 7.9 L. How many L do 7 of them make in all? =
  16. 16.8.7 × 0.6 =
  17. 17.One bottle of oil holds 3.8 L. How many L do 4 of them make in all? =
  18. 18.5/8 ÷ 2/3 =
  19. 19.2/5 × 5 =
  20. 20.8/9 × 5/6 =
  21. 21.5/8 × 4/7 =
  22. 22.25.76 ÷ 4 =
  23. 23.2/9 × 8 =
  24. 24.5.4 ÷ 0.9 =
  25. 25.5.4 ÷ 0.6 =
  26. 26.3/4 × 10 =
  27. 27.5/6 × 3 =
  28. 28.2/5 ÷ 1/4 =
  29. 29.One jug of milk holds 4 L. How many L do 3 of them make in all? =
  30. 30.2/3 × 2/9 =
  31. 31.3/7 × 5/9 =
  32. 32.2.7 ÷ 0.9 =
  33. 33.4/9 ÷ 5/6 =
  34. 34.One packet of rice weighs 9.6 kg. How many kg do 9 of them make in all? =
  35. 35.3/5 × 6/7 =
  36. 36.2.1 ÷ 0.7 =
  37. 37.5.1 × 0.3 =
  38. 38.One jug of milk holds 8.5 L. How many L do 6 of them make in all? =
  39. 39.1/5 × 10 =
  40. 40.1/3 × 8/9 =

Answer key

  1. 9
  2. 21/4
  3. 12.6
  4. 16/5
  5. 4.32
  6. 25/21
  7. 10
  8. 52/9
  9. 1.6
  10. 1.89
  11. 15/28
  12. 3/4
  13. 12.3
  14. 1.91
  15. 55.3
  16. 5.22
  17. 15.2
  18. 15/16
  19. 2
  20. 20/27
  21. 5/14
  22. 6.44
  23. 16/9
  24. 6
  25. 9
  26. 15/2
  27. 5/2
  28. 8/5
  29. 12
  30. 4/27
  31. 5/21
  32. 3
  33. 8/15
  34. 86.4
  35. 18/35
  36. 3
  37. 1.53
  38. 51
  39. 2
  40. 8/27

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