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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 329 · 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. 1.14.94 ÷ 2 =
  2. 2.3/8 × 6 =
  3. 3.2/5 × 7 =
  4. 4.2.6 × 0.3 =
  5. 5.2.3 × 0.7 =
  6. 6.2/5 ÷ 5/6 =
  7. 7.1/4 × 7/8 =
  8. 8.71.28 ÷ 8 =
  9. 9.4 ÷ 0.5 =
  10. 10.1/6 × 4/9 =
  11. 11.2.7 × 0.4 =
  12. 12.2.1 ÷ 0.7 =
  13. 13.5/6 ÷ 5/7 =
  14. 14.1.4 ÷ 0.2 =
  15. 15.One jug of milk holds 1.1 L. How many L do 2 of them make in all? =
  16. 16.31.04 ÷ 8 =
  17. 17.4/7 × 5 =
  18. 18.1/4 × 1/7 =
  19. 19.One roll of ribbon has 2.3 m. How many m do 6 of them make in all? =
  20. 20.1/9 ÷ 5/8 =
  21. 21.2/9 ÷ 7/8 =
  22. 22.2/9 × 9 =
  23. 23.5.5 ÷ 0.5 =
  24. 24.1/7 × 1/4 =
  25. 25.1/2 × 4/9 =
  26. 26.47.75 ÷ 5 =
  27. 27.5/6 ÷ 7/9 =
  28. 28.1/5 × 12 =
  29. 29.4/7 × 11 =
  30. 30.3/8 × 14 =
  31. 31.25.52 ÷ 4 =
  32. 32.One roll of ribbon has 8.1 m. How many m do 11 of them make in all? =
  33. 33.1/5 × 3/4 =
  34. 34.One bag of potatoes weighs 2.5 kg. How many kg do 12 of them make in all? =
  35. 35.5/7 ÷ 1/9 =
  36. 36.One packet of rice weighs 5.2 kg. How many kg do 8 of them make in all? =
  37. 37.7/8 ÷ 3/5 =
  38. 38.4/7 ÷ 5/7 =
  39. 39.5/8 × 12 =
  40. 40.8/9 ÷ 4/9 =

Answer key

  1. 7.47
  2. 9/4
  3. 14/5
  4. 0.78
  5. 1.61
  6. 12/25
  7. 7/32
  8. 8.91
  9. 8
  10. 2/27
  11. 1.08
  12. 3
  13. 7/6
  14. 7
  15. 2.2
  16. 3.88
  17. 20/7
  18. 1/28
  19. 13.8
  20. 8/45
  21. 16/63
  22. 2
  23. 11
  24. 1/28
  25. 2/9
  26. 9.55
  27. 15/14
  28. 12/5
  29. 44/7
  30. 21/4
  31. 6.38
  32. 89.1
  33. 3/20
  34. 30
  35. 45/7
  36. 41.6
  37. 35/24
  38. 4/5
  39. 15/2
  40. 2

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