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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 560 · 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 bottle of oil holds 8 L. How many L do 2 of them make in all? =
  2. 2.47.3 ÷ 5 =
  3. 3.1.6 ÷ 0.8 =
  4. 4.1/7 × 3/4 =
  5. 5.5/7 × 9 =
  6. 6.5/6 × 2/9 =
  7. 7.1/7 × 2 =
  8. 8.42.32 ÷ 8 =
  9. 9.1/7 ÷ 3/7 =
  10. 10.4/7 × 9 =
  11. 11.One bag of potatoes weighs 4.3 kg. How many kg do 9 of them make in all? =
  12. 12.4/7 × 3/7 =
  13. 13.8/9 × 3 =
  14. 14.4/5 × 3/4 =
  15. 15.1/4 × 5/7 =
  16. 16.3/8 × 8 =
  17. 17.26.88 ÷ 8 =
  18. 18.6.8 ÷ 5 =
  19. 19.29.55 ÷ 5 =
  20. 20.7/8 × 3/8 =
  21. 21.8.3 × 0.2 =
  22. 22.4/7 × 4/9 =
  23. 23.2.8 ÷ 0.4 =
  24. 24.0.5 ÷ 2 =
  25. 25.8/9 ÷ 2/7 =
  26. 26.0.6 ÷ 0.2 =
  27. 27.7/8 × 2/5 =
  28. 28.One bottle of oil holds 5.6 L. How many L do 6 of them make in all? =
  29. 29.3/5 × 4 =
  30. 30.37.92 ÷ 8 =
  31. 31.3/7 × 8 =
  32. 32.1/9 × 10 =
  33. 33.One roll of ribbon has 6 m. How many m do 11 of them make in all? =
  34. 34.5/6 × 6 =
  35. 35.15.28 ÷ 4 =
  36. 36.6.6 ÷ 0.6 =
  37. 37.3/8 × 1/6 =
  38. 38.1.5 × 0.6 =
  39. 39.1/3 × 12 =
  40. 40.One roll of ribbon has 5.4 m. How many m do 10 of them make in all? =

Answer key

  1. 16
  2. 9.46
  3. 2
  4. 3/28
  5. 45/7
  6. 5/27
  7. 2/7
  8. 5.29
  9. 1/3
  10. 36/7
  11. 38.7
  12. 12/49
  13. 8/3
  14. 3/5
  15. 5/28
  16. 3
  17. 3.36
  18. 1.36
  19. 5.91
  20. 21/64
  21. 1.66
  22. 16/63
  23. 7
  24. 0.25
  25. 28/9
  26. 3
  27. 7/20
  28. 33.6
  29. 12/5
  30. 4.74
  31. 24/7
  32. 10/9
  33. 66
  34. 5
  35. 3.82
  36. 11
  37. 1/16
  38. 0.9
  39. 4
  40. 54

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