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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 303 · 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. 1.1.4 × 0.8 =
  2. 2.4.9 × 0.8 =
  3. 3.7/8 × 4/5 =
  4. 4.3.6 ÷ 0.9 =
  5. 5.6.55 ÷ 5 =
  6. 6.One jug of milk holds 9.1 L. How many L do 4 of them make in all? =
  7. 7.1.4 ÷ 0.2 =
  8. 8.19.35 ÷ 5 =
  9. 9.7.2 ÷ 0.8 =
  10. 10.2/9 × 2 =
  11. 11.3/7 × 3/4 =
  12. 12.3/8 × 15 =
  13. 13.One packet of rice weighs 2 kg. How many kg do 5 of them make in all? =
  14. 14.1/2 × 2 =
  15. 15.One jug of milk holds 3 L. How many L do 6 of them make in all? =
  16. 16.1/3 × 6 =
  17. 17.One bag of potatoes weighs 3.1 kg. How many kg do 12 of them make in all? =
  18. 18.2/5 × 5/9 =
  19. 19.1/8 ÷ 7/9 =
  20. 20.2.7 ÷ 0.3 =
  21. 21.6.3 ÷ 0.7 =
  22. 22.9.3 × 0.8 =
  23. 23.One jug of milk holds 3.6 L. How many L do 3 of them make in all? =
  24. 24.36.7 ÷ 5 =
  25. 25.7.9 × 0.9 =
  26. 26.3/5 ÷ 7/8 =
  27. 27.1/5 × 11 =
  28. 28.31.7 ÷ 5 =
  29. 29.9.12 ÷ 8 =
  30. 30.6.5 ÷ 5 =
  31. 31.1/2 × 3 =
  32. 32.1/2 × 4/7 =
  33. 33.1/6 × 5/6 =
  34. 34.8 ÷ 8 =
  35. 35.5/9 × 2/7 =
  36. 36.15.68 ÷ 8 =
  37. 37.1/5 × 12 =
  38. 38.One bottle of oil holds 9.3 L. How many L do 7 of them make in all? =
  39. 39.5.8 × 0.7 =
  40. 40.3/5 ÷ 3/4 =

Answer key

  1. 1.12
  2. 3.92
  3. 7/10
  4. 4
  5. 1.31
  6. 36.4
  7. 7
  8. 3.87
  9. 9
  10. 4/9
  11. 9/28
  12. 45/8
  13. 10
  14. 1
  15. 18
  16. 2
  17. 37.2
  18. 2/9
  19. 9/56
  20. 9
  21. 9
  22. 7.44
  23. 10.8
  24. 7.34
  25. 7.11
  26. 24/35
  27. 11/5
  28. 6.34
  29. 1.14
  30. 1.3
  31. 3/2
  32. 2/7
  33. 5/36
  34. 1
  35. 10/63
  36. 1.96
  37. 12/5
  38. 65.1
  39. 4.06
  40. 4/5

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