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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 419 · 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. 1.2/7 × 7 =
  2. 2.One bottle of oil holds 5.1 L. How many L do 6 of them make in all? =
  3. 3.1/4 × 10 =
  4. 4.1.18 ÷ 2 =
  5. 5.5.52 ÷ 4 =
  6. 6.4/5 × 6 =
  7. 7.2.4 ÷ 0.3 =
  8. 8.2/5 × 5/9 =
  9. 9.5/7 × 4/9 =
  10. 10.31.6 ÷ 4 =
  11. 11.8/9 × 8/9 =
  12. 12.2/3 × 1/2 =
  13. 13.5/8 × 13 =
  14. 14.7/9 ÷ 1/4 =
  15. 15.5/7 × 11 =
  16. 16.One jug of milk holds 6.3 L. How many L do 5 of them make in all? =
  17. 17.4/7 ÷ 1/7 =
  18. 18.3/8 × 5/6 =
  19. 19.5/7 ÷ 2/7 =
  20. 20.5/9 × 10 =
  21. 21.1/9 ÷ 2/7 =
  22. 22.5.5 ÷ 0.5 =
  23. 23.2/5 × 4 =
  24. 24.4.5 × 0.7 =
  25. 25.58.72 ÷ 8 =
  26. 26.1/3 × 6 =
  27. 27.77.92 ÷ 8 =
  28. 28.One bag of potatoes weighs 6 kg. How many kg do 7 of them make in all? =
  29. 29.1/2 × 12 =
  30. 30.4/9 × 5/7 =
  31. 31.3/8 × 8 =
  32. 32.3/4 × 3/7 =
  33. 33.3.2 ÷ 0.4 =
  34. 34.1/3 × 2/5 =
  35. 35.3.5 ÷ 0.7 =
  36. 36.5.52 ÷ 8 =
  37. 37.One bottle of oil holds 7.6 L. How many L do 10 of them make in all? =
  38. 38.1.5 ÷ 0.5 =
  39. 39.One roll of ribbon has 1.1 m. How many m do 9 of them make in all? =
  40. 40.6/7 ÷ 1/4 =

Answer key

  1. 2
  2. 30.6
  3. 5/2
  4. 0.59
  5. 1.38
  6. 24/5
  7. 8
  8. 2/9
  9. 20/63
  10. 7.9
  11. 64/81
  12. 1/3
  13. 65/8
  14. 28/9
  15. 55/7
  16. 31.5
  17. 4
  18. 5/16
  19. 5/2
  20. 50/9
  21. 7/18
  22. 11
  23. 8/5
  24. 3.15
  25. 7.34
  26. 2
  27. 9.74
  28. 42
  29. 6
  30. 20/63
  31. 3
  32. 9/28
  33. 8
  34. 2/15
  35. 5
  36. 0.69
  37. 76
  38. 3
  39. 9.9
  40. 24/7

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