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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 444 · 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. 1.1/6 ÷ 5/6 =
  2. 2.1.6 ÷ 0.2 =
  3. 3.4.4 ÷ 0.4 =
  4. 4.One packet of rice weighs 2.3 kg. How many kg do 7 of them make in all? =
  5. 5.3/4 ÷ 5/7 =
  6. 6.1/8 ÷ 3/5 =
  7. 7.2.5 × 0.8 =
  8. 8.2 ÷ 0.4 =
  9. 9.1.4 ÷ 0.7 =
  10. 10.2/3 × 3/4 =
  11. 11.5/6 × 2/3 =
  12. 12.1/7 × 1/5 =
  13. 13.3/5 × 14 =
  14. 14.2/3 × 8 =
  15. 15.3/8 ÷ 5/6 =
  16. 16.One bag of potatoes weighs 8.8 kg. How many kg do 10 of them make in all? =
  17. 17.One packet of rice weighs 2.5 kg. How many kg do 7 of them make in all? =
  18. 18.1/8 × 3/4 =
  19. 19.One jug of milk holds 5.5 L. How many L do 5 of them make in all? =
  20. 20.1.1 × 0.7 =
  21. 21.One packet of rice weighs 4.6 kg. How many kg do 8 of them make in all? =
  22. 22.2/5 × 7/8 =
  23. 23.One bottle of oil holds 3.9 L. How many L do 11 of them make in all? =
  24. 24.1/6 ÷ 4/9 =
  25. 25.4/9 × 8 =
  26. 26.4 ÷ 0.5 =
  27. 27.1/8 ÷ 1/9 =
  28. 28.3/4 × 1/5 =
  29. 29.One bottle of oil holds 2 L. How many L do 11 of them make in all? =
  30. 30.1.8 ÷ 0.2 =
  31. 31.7/9 × 8/9 =
  32. 32.1/8 × 11 =
  33. 33.7/9 × 7/8 =
  34. 34.1/6 ÷ 1/6 =
  35. 35.One packet of rice weighs 9 kg. How many kg do 2 of them make in all? =
  36. 36.2.4 ÷ 0.8 =
  37. 37.5/9 ÷ 5/8 =
  38. 38.3.6 ÷ 0.3 =
  39. 39.3/4 × 5/9 =
  40. 40.9.8 × 0.2 =

Answer key

  1. 1/5
  2. 8
  3. 11
  4. 16.1
  5. 21/20
  6. 5/24
  7. 2
  8. 5
  9. 2
  10. 1/2
  11. 5/9
  12. 1/35
  13. 42/5
  14. 16/3
  15. 9/20
  16. 88
  17. 17.5
  18. 3/32
  19. 27.5
  20. 0.77
  21. 36.8
  22. 7/20
  23. 42.9
  24. 3/8
  25. 32/9
  26. 8
  27. 9/8
  28. 3/20
  29. 22
  30. 9
  31. 56/81
  32. 11/8
  33. 49/72
  34. 1
  35. 18
  36. 3
  37. 8/9
  38. 12
  39. 5/12
  40. 1.96

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