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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 19 · 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. 1.1/5 × 13 =
  2. 2.1.6 × 0.9 =
  3. 3.9.6 × 0.2 =
  4. 4.One packet of rice weighs 8.4 kg. How many kg do 7 of them make in all? =
  5. 5.6.1 × 0.3 =
  6. 6.25.35 ÷ 5 =
  7. 7.5/6 ÷ 7/9 =
  8. 8.30.24 ÷ 4 =
  9. 9.9.9 ÷ 0.9 =
  10. 10.5/7 × 8/9 =
  11. 11.1.2 ÷ 0.2 =
  12. 12.2/5 × 3/8 =
  13. 13.2/9 × 1/4 =
  14. 14.7/9 × 1/5 =
  15. 15.One bottle of oil holds 9.7 L. How many L do 6 of them make in all? =
  16. 16.2.4 ÷ 0.6 =
  17. 17.1/5 ÷ 3/4 =
  18. 18.8.4 ÷ 0.7 =
  19. 19.7/9 × 1/2 =
  20. 20.1/4 × 10 =
  21. 21.5/8 × 12 =
  22. 22.7/8 × 6 =
  23. 23.16.98 ÷ 2 =
  24. 24.3/7 × 1/8 =
  25. 25.28.6 ÷ 5 =
  26. 26.3 ÷ 0.3 =
  27. 27.1/6 ÷ 2/5 =
  28. 28.7/8 ÷ 1/4 =
  29. 29.3/7 ÷ 2/7 =
  30. 30.19.44 ÷ 2 =
  31. 31.1/4 × 5 =
  32. 32.2/5 × 8 =
  33. 33.1/6 × 3/5 =
  34. 34.1.2 × 0.9 =
  35. 35.1/3 × 4 =
  36. 36.One packet of rice weighs 8 kg. How many kg do 11 of them make in all? =
  37. 37.One jug of milk holds 9 L. How many L do 6 of them make in all? =
  38. 38.6.5 × 0.5 =
  39. 39.5/8 × 8 =
  40. 40.3/5 ÷ 5/9 =

Answer key

  1. 13/5
  2. 1.44
  3. 1.92
  4. 58.8
  5. 1.83
  6. 5.07
  7. 15/14
  8. 7.56
  9. 11
  10. 40/63
  11. 6
  12. 3/20
  13. 1/18
  14. 7/45
  15. 58.2
  16. 4
  17. 4/15
  18. 12
  19. 7/18
  20. 5/2
  21. 15/2
  22. 21/4
  23. 8.49
  24. 3/56
  25. 5.72
  26. 10
  27. 5/12
  28. 7/2
  29. 3/2
  30. 9.72
  31. 5/4
  32. 16/5
  33. 1/10
  34. 1.08
  35. 4/3
  36. 88
  37. 54
  38. 3.25
  39. 5
  40. 27/25

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