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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 550 · 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. 1.1.4 ÷ 0.2 =
  2. 2.7.2 × 0.4 =
  3. 3.2/9 × 5/8 =
  4. 4.4/7 ÷ 2/9 =
  5. 5.5/7 × 1/3 =
  6. 6.One bag of potatoes weighs 2.5 kg. How many kg do 6 of them make in all? =
  7. 7.2/3 ÷ 8/9 =
  8. 8.3/5 ÷ 4/5 =
  9. 9.2.4 ÷ 0.4 =
  10. 10.One bag of potatoes weighs 3.6 kg. How many kg do 11 of them make in all? =
  11. 11.One packet of rice weighs 4.3 kg. How many kg do 3 of them make in all? =
  12. 12.7/8 × 7/8 =
  13. 13.3.2 ÷ 0.8 =
  14. 14.6.9 × 0.8 =
  15. 15.One bag of potatoes weighs 1.1 kg. How many kg do 9 of them make in all? =
  16. 16.One packet of rice weighs 7.1 kg. How many kg do 11 of them make in all? =
  17. 17.4/5 × 12 =
  18. 18.1/5 × 12 =
  19. 19.2/9 ÷ 1/6 =
  20. 20.4/7 ÷ 1/7 =
  21. 21.2.9 × 0.4 =
  22. 22.One packet of rice weighs 3.9 kg. How many kg do 6 of them make in all? =
  23. 23.4/7 × 8/9 =
  24. 24.2.6 × 0.7 =
  25. 25.One jug of milk holds 4.9 L. How many L do 5 of them make in all? =
  26. 26.2/3 × 1/7 =
  27. 27.One packet of rice weighs 5.4 kg. How many kg do 8 of them make in all? =
  28. 28.7.2 ÷ 0.6 =
  29. 29.One packet of rice weighs 8.4 kg. How many kg do 2 of them make in all? =
  30. 30.24.32 ÷ 4 =
  31. 31.1/4 × 5/8 =
  32. 32.7.3 × 0.8 =
  33. 33.2 ÷ 0.4 =
  34. 34.6/7 × 6/7 =
  35. 35.3/8 × 5/6 =
  36. 36.3/8 × 3/8 =
  37. 37.0.7 × 0.7 =
  38. 38.9 ÷ 0.9 =
  39. 39.One packet of rice weighs 5.7 kg. How many kg do 9 of them make in all? =
  40. 40.6 ÷ 0.5 =

Answer key

  1. 7
  2. 2.88
  3. 5/36
  4. 18/7
  5. 5/21
  6. 15
  7. 3/4
  8. 3/4
  9. 6
  10. 39.6
  11. 12.9
  12. 49/64
  13. 4
  14. 5.52
  15. 9.9
  16. 78.1
  17. 48/5
  18. 12/5
  19. 4/3
  20. 4
  21. 1.16
  22. 23.4
  23. 32/63
  24. 1.82
  25. 24.5
  26. 2/21
  27. 43.2
  28. 12
  29. 16.8
  30. 6.08
  31. 5/32
  32. 5.84
  33. 5
  34. 36/49
  35. 5/16
  36. 9/64
  37. 0.49
  38. 10
  39. 51.3
  40. 12

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