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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 143 · 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. 1.8.4 × 0.6 =
  2. 2.58.08 ÷ 8 =
  3. 3.One packet of rice weighs 1.6 kg. How many kg do 2 of them make in all? =
  4. 4.1/8 ÷ 3/4 =
  5. 5.77.36 ÷ 8 =
  6. 6.8.7 × 0.4 =
  7. 7.One roll of ribbon has 3.5 m. How many m do 7 of them make in all? =
  8. 8.4/5 ÷ 4/9 =
  9. 9.7.6 × 0.7 =
  10. 10.5/6 ÷ 1/5 =
  11. 11.8.26 ÷ 2 =
  12. 12.7.68 ÷ 2 =
  13. 13.17.72 ÷ 4 =
  14. 14.3/5 × 2 =
  15. 15.3 ÷ 0.3 =
  16. 16.2/3 ÷ 4/7 =
  17. 17.8.5 × 0.4 =
  18. 18.34.15 ÷ 5 =
  19. 19.9.62 ÷ 2 =
  20. 20.13.42 ÷ 2 =
  21. 21.One packet of rice weighs 2.1 kg. How many kg do 7 of them make in all? =
  22. 22.One bag of potatoes weighs 9.4 kg. How many kg do 4 of them make in all? =
  23. 23.2/7 ÷ 3/4 =
  24. 24.5.4 ÷ 0.6 =
  25. 25.One packet of rice weighs 1.4 kg. How many kg do 4 of them make in all? =
  26. 26.7/8 ÷ 8/9 =
  27. 27.One jug of milk holds 7.2 L. How many L do 6 of them make in all? =
  28. 28.4.1 × 0.4 =
  29. 29.5/6 ÷ 7/8 =
  30. 30.5.6 × 0.3 =
  31. 31.4/5 × 1/9 =
  32. 32.4/9 × 2 =
  33. 33.1/6 × 5 =
  34. 34.2/9 × 9 =
  35. 35.1/8 × 10 =
  36. 36.3.4 × 0.7 =
  37. 37.3/7 × 3/5 =
  38. 38.5/7 × 1/5 =
  39. 39.1.8 ÷ 0.3 =
  40. 40.3.7 × 0.7 =

Answer key

  1. 5.04
  2. 7.26
  3. 3.2
  4. 1/6
  5. 9.67
  6. 3.48
  7. 24.5
  8. 9/5
  9. 5.32
  10. 25/6
  11. 4.13
  12. 3.84
  13. 4.43
  14. 6/5
  15. 10
  16. 7/6
  17. 3.4
  18. 6.83
  19. 4.81
  20. 6.71
  21. 14.7
  22. 37.6
  23. 8/21
  24. 9
  25. 5.6
  26. 63/64
  27. 43.2
  28. 1.64
  29. 20/21
  30. 1.68
  31. 4/45
  32. 8/9
  33. 5/6
  34. 2
  35. 5/4
  36. 2.38
  37. 9/35
  38. 1/7
  39. 6
  40. 2.59

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