← 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 355 · 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.One jug of milk holds 7.2 L. How many L do 12 of them make in all? =
  2. 2.3/4 ÷ 5/8 =
  3. 3.7/9 × 1/5 =
  4. 4.7.2 × 0.7 =
  5. 5.37.96 ÷ 4 =
  6. 6.One bag of potatoes weighs 9.1 kg. How many kg do 8 of them make in all? =
  7. 7.9.6 ÷ 0.8 =
  8. 8.1.8 ÷ 0.2 =
  9. 9.4/7 × 3/5 =
  10. 10.One packet of rice weighs 6 kg. How many kg do 9 of them make in all? =
  11. 11.1/7 ÷ 7/9 =
  12. 12.5/9 × 1/3 =
  13. 13.2/5 × 14 =
  14. 14.1.6 ÷ 0.4 =
  15. 15.7/8 ÷ 1/3 =
  16. 16.1/5 × 1/3 =
  17. 17.3/7 × 13 =
  18. 18.4/7 × 3/8 =
  19. 19.2/5 ÷ 1/2 =
  20. 20.1/2 × 2 =
  21. 21.1/8 × 5/7 =
  22. 22.2/7 × 5/6 =
  23. 23.1/7 × 3/7 =
  24. 24.22.9 ÷ 5 =
  25. 25.6 ÷ 5 =
  26. 26.30.72 ÷ 4 =
  27. 27.2/5 × 5/6 =
  28. 28.4.9 ÷ 0.7 =
  29. 29.1/3 × 9 =
  30. 30.1/4 ÷ 7/8 =
  31. 31.2/9 × 4 =
  32. 32.1/6 ÷ 5/7 =
  33. 33.2/5 × 10 =
  34. 34.2.8 ÷ 0.4 =
  35. 35.1/8 ÷ 1/6 =
  36. 36.2/9 × 2 =
  37. 37.2/5 ÷ 3/7 =
  38. 38.1/9 × 3/7 =
  39. 39.One bottle of oil holds 8.6 L. How many L do 5 of them make in all? =
  40. 40.One packet of rice weighs 4.8 kg. How many kg do 8 of them make in all? =

Answer key

  1. 86.4
  2. 6/5
  3. 7/45
  4. 5.04
  5. 9.49
  6. 72.8
  7. 12
  8. 9
  9. 12/35
  10. 54
  11. 9/49
  12. 5/27
  13. 28/5
  14. 4
  15. 21/8
  16. 1/15
  17. 39/7
  18. 3/14
  19. 4/5
  20. 1
  21. 5/56
  22. 5/21
  23. 3/49
  24. 4.58
  25. 1.2
  26. 7.68
  27. 1/3
  28. 7
  29. 3
  30. 2/7
  31. 8/9
  32. 7/30
  33. 4
  34. 7
  35. 3/4
  36. 4/9
  37. 14/15
  38. 1/21
  39. 43
  40. 38.4

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