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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 528 · 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. 1.3/5 × 2/7 =
  2. 2.2/9 × 2/3 =
  3. 3.5.7 × 0.8 =
  4. 4.6.3 ÷ 0.9 =
  5. 5.14.4 ÷ 2 =
  6. 6.3.3 ÷ 0.3 =
  7. 7.1.2 × 0.4 =
  8. 8.17.32 ÷ 2 =
  9. 9.6.4 ÷ 0.8 =
  10. 10.4/5 × 15 =
  11. 11.7.8 × 0.7 =
  12. 12.1/6 × 8/9 =
  13. 13.2.8 × 0.8 =
  14. 14.One packet of rice weighs 9.8 kg. How many kg do 5 of them make in all? =
  15. 15.1/3 × 2/7 =
  16. 16.17.88 ÷ 2 =
  17. 17.One bag of potatoes weighs 1.3 kg. How many kg do 7 of them make in all? =
  18. 18.4/5 ÷ 3/4 =
  19. 19.2/3 × 6 =
  20. 20.4/9 ÷ 3/4 =
  21. 21.4/7 × 1/9 =
  22. 22.One roll of ribbon has 8.8 m. How many m do 4 of them make in all? =
  23. 23.2.9 × 0.3 =
  24. 24.1/4 × 5/9 =
  25. 25.1/8 ÷ 5/7 =
  26. 26.1/8 × 4 =
  27. 27.2/7 × 3 =
  28. 28.7.45 ÷ 5 =
  29. 29.1/9 × 1/2 =
  30. 30.32.68 ÷ 4 =
  31. 31.2/3 × 4 =
  32. 32.4/5 × 3/5 =
  33. 33.One packet of rice weighs 1.9 kg. How many kg do 4 of them make in all? =
  34. 34.2.7 × 0.8 =
  35. 35.4/7 × 8 =
  36. 36.One jug of milk holds 9.2 L. How many L do 3 of them make in all? =
  37. 37.8.8 ÷ 0.8 =
  38. 38.18.18 ÷ 2 =
  39. 39.4/5 ÷ 1/5 =
  40. 40.2/5 × 8/9 =

Answer key

  1. 6/35
  2. 4/27
  3. 4.56
  4. 7
  5. 7.2
  6. 11
  7. 0.48
  8. 8.66
  9. 8
  10. 12
  11. 5.46
  12. 4/27
  13. 2.24
  14. 49
  15. 2/21
  16. 8.94
  17. 9.1
  18. 16/15
  19. 4
  20. 16/27
  21. 4/63
  22. 35.2
  23. 0.87
  24. 5/36
  25. 7/40
  26. 1/2
  27. 6/7
  28. 1.49
  29. 1/18
  30. 8.17
  31. 8/3
  32. 12/25
  33. 7.6
  34. 2.16
  35. 32/7
  36. 27.6
  37. 11
  38. 9.09
  39. 4
  40. 16/45

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