← 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 103 · 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. 1.4/7 × 3/5 =
  2. 2.5/9 × 2 =
  3. 3.5/7 × 2/3 =
  4. 4.5/8 × 1/8 =
  5. 5.4/7 ÷ 5/7 =
  6. 6.6.3 × 0.3 =
  7. 7.5/8 ÷ 4/9 =
  8. 8.One roll of ribbon has 1.3 m. How many m do 9 of them make in all? =
  9. 9.6/7 × 3/5 =
  10. 10.8/9 × 5/9 =
  11. 11.3/4 ÷ 1/2 =
  12. 12.One roll of ribbon has 5.1 m. How many m do 7 of them make in all? =
  13. 13.7/8 × 6 =
  14. 14.2.5 × 0.3 =
  15. 15.One jug of milk holds 4.1 L. How many L do 11 of them make in all? =
  16. 16.6.3 ÷ 0.9 =
  17. 17.One bottle of oil holds 5 L. How many L do 10 of them make in all? =
  18. 18.One bag of potatoes weighs 1.4 kg. How many kg do 3 of them make in all? =
  19. 19.1/4 ÷ 1/4 =
  20. 20.8.24 ÷ 2 =
  21. 21.2/3 × 1/5 =
  22. 22.4/5 × 5 =
  23. 23.1.1 × 0.7 =
  24. 24.7.6 × 0.9 =
  25. 25.3.6 ÷ 0.9 =
  26. 26.1/8 ÷ 2/5 =
  27. 27.35.32 ÷ 4 =
  28. 28.4/7 × 14 =
  29. 29.One packet of rice weighs 1.5 kg. How many kg do 5 of them make in all? =
  30. 30.6/7 × 1/6 =
  31. 31.1/4 ÷ 1/8 =
  32. 32.4/5 × 2 =
  33. 33.One packet of rice weighs 2.2 kg. How many kg do 3 of them make in all? =
  34. 34.3/5 ÷ 1/4 =
  35. 35.8.8 ÷ 0.8 =
  36. 36.5/9 × 4/7 =
  37. 37.47.2 ÷ 5 =
  38. 38.42.64 ÷ 8 =
  39. 39.2.4 ÷ 0.8 =
  40. 40.7.7 ÷ 0.7 =

Answer key

  1. 12/35
  2. 10/9
  3. 10/21
  4. 5/64
  5. 4/5
  6. 1.89
  7. 45/32
  8. 11.7
  9. 18/35
  10. 40/81
  11. 3/2
  12. 35.7
  13. 21/4
  14. 0.75
  15. 45.1
  16. 7
  17. 50
  18. 4.2
  19. 1
  20. 4.12
  21. 2/15
  22. 4
  23. 0.77
  24. 6.84
  25. 4
  26. 5/16
  27. 8.83
  28. 8
  29. 7.5
  30. 1/7
  31. 2
  32. 8/5
  33. 6.6
  34. 12/5
  35. 11
  36. 20/63
  37. 9.44
  38. 5.33
  39. 3
  40. 11

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