← 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 101 · 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. 1.4 ÷ 0.4 =
  2. 2.4.66 ÷ 2 =
  3. 3.1/5 × 4 =
  4. 4.7/8 ÷ 5/6 =
  5. 5.4/5 ÷ 3/5 =
  6. 6.One jug of milk holds 7.1 L. How many L do 7 of them make in all? =
  7. 7.1/3 × 2/9 =
  8. 8.2/5 × 2 =
  9. 9.2/7 × 3/8 =
  10. 10.1/7 × 5/7 =
  11. 11.13.36 ÷ 4 =
  12. 12.2.2 ÷ 0.2 =
  13. 13.One jug of milk holds 2.5 L. How many L do 6 of them make in all? =
  14. 14.One bag of potatoes weighs 6.4 kg. How many kg do 2 of them make in all? =
  15. 15.8/9 × 5 =
  16. 16.0.6 ÷ 0.2 =
  17. 17.1/3 ÷ 1/2 =
  18. 18.0.4 × 0.5 =
  19. 19.0.9 ÷ 0.3 =
  20. 20.One roll of ribbon has 8.9 m. How many m do 2 of them make in all? =
  21. 21.8/9 × 13 =
  22. 22.One roll of ribbon has 3.6 m. How many m do 6 of them make in all? =
  23. 23.4.3 × 0.2 =
  24. 24.2.4 ÷ 0.6 =
  25. 25.One packet of rice weighs 7.1 kg. How many kg do 5 of them make in all? =
  26. 26.3/7 ÷ 1/4 =
  27. 27.One packet of rice weighs 6.5 kg. How many kg do 4 of them make in all? =
  28. 28.1/5 ÷ 1/4 =
  29. 29.One bag of potatoes weighs 8.5 kg. How many kg do 5 of them make in all? =
  30. 30.5/7 × 8 =
  31. 31.11.76 ÷ 4 =
  32. 32.3/4 × 15 =
  33. 33.19.28 ÷ 2 =
  34. 34.One packet of rice weighs 3.7 kg. How many kg do 5 of them make in all? =
  35. 35.4/7 × 8 =
  36. 36.4/7 ÷ 3/5 =
  37. 37.5.1 × 0.4 =
  38. 38.1/3 ÷ 5/8 =
  39. 39.2 ÷ 0.5 =
  40. 40.7.2 × 0.7 =

Answer key

  1. 10
  2. 2.33
  3. 4/5
  4. 21/20
  5. 4/3
  6. 49.7
  7. 2/27
  8. 4/5
  9. 3/28
  10. 5/49
  11. 3.34
  12. 11
  13. 15
  14. 12.8
  15. 40/9
  16. 3
  17. 2/3
  18. 0.2
  19. 3
  20. 17.8
  21. 104/9
  22. 21.6
  23. 0.86
  24. 4
  25. 35.5
  26. 12/7
  27. 26
  28. 4/5
  29. 42.5
  30. 40/7
  31. 2.94
  32. 45/4
  33. 9.64
  34. 18.5
  35. 32/7
  36. 20/21
  37. 2.04
  38. 8/15
  39. 4
  40. 5.04

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