← 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 121 · 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. 1.2/9 × 3 =
  2. 2.1/8 ÷ 3/7 =
  3. 3.One packet of rice weighs 7.4 kg. How many kg do 9 of them make in all? =
  4. 4.6.32 ÷ 4 =
  5. 5.6/7 × 10 =
  6. 6.6.2 × 0.5 =
  7. 7.22.8 ÷ 8 =
  8. 8.5/7 ÷ 3/4 =
  9. 9.3.6 ÷ 0.3 =
  10. 10.2.2 ÷ 0.2 =
  11. 11.4/7 × 1/8 =
  12. 12.7.75 ÷ 5 =
  13. 13.4/5 ÷ 2/9 =
  14. 14.3.6 ÷ 0.6 =
  15. 15.5/9 × 7 =
  16. 16.4.64 ÷ 2 =
  17. 17.11.92 ÷ 8 =
  18. 18.1/9 × 5/7 =
  19. 19.One bag of potatoes weighs 1.6 kg. How many kg do 12 of them make in all? =
  20. 20.47.15 ÷ 5 =
  21. 21.1/7 × 1/2 =
  22. 22.3/4 × 8/9 =
  23. 23.2/3 ÷ 2/3 =
  24. 24.5/8 × 4/5 =
  25. 25.0.4 ÷ 2 =
  26. 26.One jug of milk holds 5.9 L. How many L do 9 of them make in all? =
  27. 27.2.5 ÷ 0.5 =
  28. 28.2/5 × 2/9 =
  29. 29.3/4 ÷ 5/7 =
  30. 30.3/4 ÷ 1/5 =
  31. 31.0.4 × 0.5 =
  32. 32.4/9 × 3/4 =
  33. 33.1/9 × 3/8 =
  34. 34.One bag of potatoes weighs 3.4 kg. How many kg do 11 of them make in all? =
  35. 35.3.04 ÷ 4 =
  36. 36.1/3 × 5/9 =
  37. 37.4/5 × 2/7 =
  38. 38.2/7 × 10 =
  39. 39.28.95 ÷ 5 =
  40. 40.1/2 × 3/7 =

Answer key

  1. 2/3
  2. 7/24
  3. 66.6
  4. 1.58
  5. 60/7
  6. 3.1
  7. 2.85
  8. 20/21
  9. 12
  10. 11
  11. 1/14
  12. 1.55
  13. 18/5
  14. 6
  15. 35/9
  16. 2.32
  17. 1.49
  18. 5/63
  19. 19.2
  20. 9.43
  21. 1/14
  22. 2/3
  23. 1
  24. 1/2
  25. 0.2
  26. 53.1
  27. 5
  28. 4/45
  29. 21/20
  30. 15/4
  31. 0.2
  32. 1/3
  33. 1/24
  34. 37.4
  35. 0.76
  36. 5/27
  37. 8/35
  38. 20/7
  39. 5.79
  40. 3/14

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