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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 456 · 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. 1.3.6 ÷ 0.3 =
  2. 2.3.3 ÷ 0.3 =
  3. 3.8.06 ÷ 2 =
  4. 4.8.08 ÷ 8 =
  5. 5.0.3 × 0.4 =
  6. 6.7/8 × 5/9 =
  7. 7.5/7 × 1/5 =
  8. 8.5.4 ÷ 0.9 =
  9. 9.7/9 × 3/8 =
  10. 10.3/5 ÷ 3/5 =
  11. 11.3/7 × 3/4 =
  12. 12.1.2 × 0.4 =
  13. 13.4/9 × 4/7 =
  14. 14.5/8 × 12 =
  15. 15.22.76 ÷ 4 =
  16. 16.5/7 × 13 =
  17. 17.3/8 ÷ 1/4 =
  18. 18.5/6 ÷ 5/8 =
  19. 19.8/9 × 7 =
  20. 20.3/4 × 3/5 =
  21. 21.30.64 ÷ 4 =
  22. 22.3/5 ÷ 5/8 =
  23. 23.5.4 ÷ 0.6 =
  24. 24.5.6 ÷ 0.8 =
  25. 25.2/7 ÷ 5/8 =
  26. 26.3.92 ÷ 2 =
  27. 27.4/5 × 12 =
  28. 28.5/6 × 10 =
  29. 29.One bag of potatoes weighs 5.5 kg. How many kg do 6 of them make in all? =
  30. 30.5/8 ÷ 7/9 =
  31. 31.2/3 × 8 =
  32. 32.0.8 ÷ 0.2 =
  33. 33.One jug of milk holds 7.7 L. How many L do 4 of them make in all? =
  34. 34.2/5 × 5/7 =
  35. 35.1/3 ÷ 1/5 =
  36. 36.1/4 ÷ 4/7 =
  37. 37.4/9 × 13 =
  38. 38.1/4 × 3/7 =
  39. 39.1/2 × 4 =
  40. 40.9.12 ÷ 8 =

Answer key

  1. 12
  2. 11
  3. 4.03
  4. 1.01
  5. 0.12
  6. 35/72
  7. 1/7
  8. 6
  9. 7/24
  10. 1
  11. 9/28
  12. 0.48
  13. 16/63
  14. 15/2
  15. 5.69
  16. 65/7
  17. 3/2
  18. 4/3
  19. 56/9
  20. 9/20
  21. 7.66
  22. 24/25
  23. 9
  24. 7
  25. 16/35
  26. 1.96
  27. 48/5
  28. 25/3
  29. 33
  30. 45/56
  31. 16/3
  32. 4
  33. 30.8
  34. 2/7
  35. 5/3
  36. 7/16
  37. 52/9
  38. 3/28
  39. 2
  40. 1.14

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