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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 37 · 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.One packet of rice weighs 6.3 kg. How many kg do 11 of them make in all? =
  2. 2.4.5 ÷ 0.5 =
  3. 3.3/5 × 2 =
  4. 4.One bag of potatoes weighs 7.1 kg. How many kg do 6 of them make in all? =
  5. 5.2/7 ÷ 3/8 =
  6. 6.3/8 ÷ 4/9 =
  7. 7.7.2 ÷ 0.9 =
  8. 8.62.4 ÷ 8 =
  9. 9.2/3 × 7 =
  10. 10.1/6 × 2/5 =
  11. 11.2 ÷ 0.2 =
  12. 12.3/7 ÷ 7/9 =
  13. 13.3/5 × 5 =
  14. 14.9.6 × 0.6 =
  15. 15.7/8 × 9 =
  16. 16.1/7 × 13 =
  17. 17.6.72 ÷ 2 =
  18. 18.1.2 ÷ 0.2 =
  19. 19.8.72 ÷ 4 =
  20. 20.5/7 × 15 =
  21. 21.18.42 ÷ 2 =
  22. 22.2/7 × 9 =
  23. 23.One bag of potatoes weighs 2.3 kg. How many kg do 11 of them make in all? =
  24. 24.6.6 ÷ 0.6 =
  25. 25.7 ÷ 0.7 =
  26. 26.One packet of rice weighs 4.9 kg. How many kg do 3 of them make in all? =
  27. 27.0.9 ÷ 0.3 =
  28. 28.2.2 × 0.5 =
  29. 29.2/7 ÷ 3/5 =
  30. 30.8.68 ÷ 2 =
  31. 31.3.6 ÷ 0.3 =
  32. 32.One jug of milk holds 6.6 L. How many L do 7 of them make in all? =
  33. 33.1/9 ÷ 4/9 =
  34. 34.3/4 × 1/4 =
  35. 35.1/6 ÷ 2/9 =
  36. 36.2 ÷ 0.4 =
  37. 37.4.5 ÷ 0.9 =
  38. 38.35.28 ÷ 8 =
  39. 39.6/7 × 13 =
  40. 40.One roll of ribbon has 6.6 m. How many m do 10 of them make in all? =

Answer key

  1. 69.3
  2. 9
  3. 6/5
  4. 42.6
  5. 16/21
  6. 27/32
  7. 8
  8. 7.8
  9. 14/3
  10. 1/15
  11. 10
  12. 27/49
  13. 3
  14. 5.76
  15. 63/8
  16. 13/7
  17. 3.36
  18. 6
  19. 2.18
  20. 75/7
  21. 9.21
  22. 18/7
  23. 25.3
  24. 11
  25. 10
  26. 14.7
  27. 3
  28. 1.1
  29. 10/21
  30. 4.34
  31. 12
  32. 46.2
  33. 1/4
  34. 3/16
  35. 3/4
  36. 5
  37. 5
  38. 4.41
  39. 78/7
  40. 66

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