← 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 140 · 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. 1.5.3 × 0.8 =
  2. 2.3/8 × 1/2 =
  3. 3.4.9 × 0.9 =
  4. 4.1/4 × 8 =
  5. 5.0.62 ÷ 2 =
  6. 6.One bottle of oil holds 5.4 L. How many L do 2 of them make in all? =
  7. 7.4/5 × 1/7 =
  8. 8.2/3 ÷ 7/9 =
  9. 9.4/9 × 3 =
  10. 10.One bag of potatoes weighs 1.3 kg. How many kg do 3 of them make in all? =
  11. 11.3.4 × 0.3 =
  12. 12.2/5 ÷ 4/7 =
  13. 13.1/2 × 14 =
  14. 14.2.4 ÷ 0.6 =
  15. 15.2.4 ÷ 0.4 =
  16. 16.9.3 × 0.9 =
  17. 17.12.45 ÷ 5 =
  18. 18.0.5 × 0.4 =
  19. 19.1/7 ÷ 8/9 =
  20. 20.2/3 × 3/8 =
  21. 21.3/7 ÷ 1/6 =
  22. 22.1.5 ÷ 0.5 =
  23. 23.1/3 ÷ 1/3 =
  24. 24.1/5 × 3/8 =
  25. 25.3/4 × 7 =
  26. 26.4/9 × 5 =
  27. 27.73.92 ÷ 8 =
  28. 28.23.45 ÷ 5 =
  29. 29.8/9 ÷ 2/3 =
  30. 30.5/6 ÷ 1/8 =
  31. 31.0.3 × 0.3 =
  32. 32.5.6 ÷ 0.8 =
  33. 33.One bag of potatoes weighs 3.3 kg. How many kg do 3 of them make in all? =
  34. 34.1/8 × 4 =
  35. 35.8.8 ÷ 0.8 =
  36. 36.4.2 ÷ 0.6 =
  37. 37.One bottle of oil holds 5.2 L. How many L do 11 of them make in all? =
  38. 38.7/8 ÷ 4/5 =
  39. 39.3.44 ÷ 4 =
  40. 40.14.24 ÷ 2 =

Answer key

  1. 4.24
  2. 3/16
  3. 4.41
  4. 2
  5. 0.31
  6. 10.8
  7. 4/35
  8. 6/7
  9. 4/3
  10. 3.9
  11. 1.02
  12. 7/10
  13. 7
  14. 4
  15. 6
  16. 8.37
  17. 2.49
  18. 0.2
  19. 9/56
  20. 1/4
  21. 18/7
  22. 3
  23. 1
  24. 3/40
  25. 21/4
  26. 20/9
  27. 9.24
  28. 4.69
  29. 4/3
  30. 20/3
  31. 0.09
  32. 7
  33. 9.9
  34. 1/2
  35. 11
  36. 7
  37. 57.2
  38. 35/32
  39. 0.86
  40. 7.12

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