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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 283 · 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 bottle of oil holds 3.2 L. How many L do 5 of them make in all? =
  2. 2.3.6 ÷ 0.9 =
  3. 3.2/5 ÷ 5/8 =
  4. 4.5.6 × 0.7 =
  5. 5.1/4 ÷ 3/7 =
  6. 6.8/9 × 7 =
  7. 7.2/3 × 3/5 =
  8. 8.3/7 ÷ 6/7 =
  9. 9.5/9 × 8 =
  10. 10.One jug of milk holds 6.6 L. How many L do 3 of them make in all? =
  11. 11.1/4 ÷ 2/9 =
  12. 12.One bag of potatoes weighs 5.1 kg. How many kg do 4 of them make in all? =
  13. 13.5/9 × 2 =
  14. 14.4/5 × 13 =
  15. 15.1/4 ÷ 8/9 =
  16. 16.2/3 × 3 =
  17. 17.3.9 × 0.6 =
  18. 18.71.04 ÷ 8 =
  19. 19.1.1 × 0.8 =
  20. 20.1/9 × 1/4 =
  21. 21.1/5 × 2/7 =
  22. 22.11.7 ÷ 2 =
  23. 23.4.4 ÷ 0.4 =
  24. 24.One roll of ribbon has 6.4 m. How many m do 10 of them make in all? =
  25. 25.1/4 ÷ 1/2 =
  26. 26.5/9 ÷ 1/7 =
  27. 27.1/3 × 15 =
  28. 28.7/8 × 2/9 =
  29. 29.1.7 ÷ 5 =
  30. 30.1/2 × 2/7 =
  31. 31.4.8 ÷ 0.4 =
  32. 32.1/7 × 3/4 =
  33. 33.1/9 ÷ 1/2 =
  34. 34.1/3 × 6 =
  35. 35.4/5 × 5 =
  36. 36.8.4 ÷ 0.7 =
  37. 37.5/9 × 3/8 =
  38. 38.4/5 × 4 =
  39. 39.10.8 ÷ 0.9 =
  40. 40.12.54 ÷ 2 =

Answer key

  1. 16
  2. 4
  3. 16/25
  4. 3.92
  5. 7/12
  6. 56/9
  7. 2/5
  8. 1/2
  9. 40/9
  10. 19.8
  11. 9/8
  12. 20.4
  13. 10/9
  14. 52/5
  15. 9/32
  16. 2
  17. 2.34
  18. 8.88
  19. 0.88
  20. 1/36
  21. 2/35
  22. 5.85
  23. 11
  24. 64
  25. 1/2
  26. 35/9
  27. 5
  28. 7/36
  29. 0.34
  30. 1/7
  31. 12
  32. 3/28
  33. 2/9
  34. 2
  35. 4
  36. 12
  37. 5/24
  38. 16/5
  39. 12
  40. 6.27

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