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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 47 · 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.One packet of rice weighs 7.5 kg. How many kg do 6 of them make in all? =
  2. 2.3/7 × 4 =
  3. 3.10.7 ÷ 2 =
  4. 4.One roll of ribbon has 5.6 m. How many m do 4 of them make in all? =
  5. 5.17.75 ÷ 5 =
  6. 6.5/6 × 5/6 =
  7. 7.1 ÷ 0.5 =
  8. 8.One bag of potatoes weighs 6.1 kg. How many kg do 2 of them make in all? =
  9. 9.5/7 × 1/3 =
  10. 10.44.24 ÷ 8 =
  11. 11.5/7 × 11 =
  12. 12.1.5 ÷ 0.3 =
  13. 13.8/9 ÷ 2/3 =
  14. 14.5/9 × 2/7 =
  15. 15.8/9 × 9 =
  16. 16.1.4 ÷ 0.7 =
  17. 17.1/7 × 1/4 =
  18. 18.5/7 × 5 =
  19. 19.One bottle of oil holds 8.8 L. How many L do 3 of them make in all? =
  20. 20.5/9 × 3 =
  21. 21.1/2 ÷ 1/9 =
  22. 22.1.6 ÷ 0.4 =
  23. 23.5/8 ÷ 1/9 =
  24. 24.One packet of rice weighs 2.8 kg. How many kg do 10 of them make in all? =
  25. 25.5/6 × 3/7 =
  26. 26.3/4 ÷ 3/7 =
  27. 27.8/9 × 3/5 =
  28. 28.1/4 × 8 =
  29. 29.6/7 × 11 =
  30. 30.1.6 ÷ 0.8 =
  31. 31.6.3 ÷ 0.9 =
  32. 32.1/3 ÷ 4/9 =
  33. 33.1/4 × 3/5 =
  34. 34.7.4 × 0.7 =
  35. 35.2/7 × 5 =
  36. 36.4 ÷ 0.5 =
  37. 37.8/9 × 5/6 =
  38. 38.2/3 × 3/5 =
  39. 39.7/9 × 5/7 =
  40. 40.5.9 × 0.3 =

Answer key

  1. 45
  2. 12/7
  3. 5.35
  4. 22.4
  5. 3.55
  6. 25/36
  7. 2
  8. 12.2
  9. 5/21
  10. 5.53
  11. 55/7
  12. 5
  13. 4/3
  14. 10/63
  15. 8
  16. 2
  17. 1/28
  18. 25/7
  19. 26.4
  20. 5/3
  21. 9/2
  22. 4
  23. 45/8
  24. 28
  25. 5/14
  26. 7/4
  27. 8/15
  28. 2
  29. 66/7
  30. 2
  31. 7
  32. 3/4
  33. 3/20
  34. 5.18
  35. 10/7
  36. 8
  37. 20/27
  38. 2/5
  39. 5/9
  40. 1.77

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