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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 50 · 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. 1.1/6 × 14 =
  2. 2.2.7 ÷ 0.3 =
  3. 3.One roll of ribbon has 9.3 m. How many m do 4 of them make in all? =
  4. 4.2/3 × 7 =
  5. 5.7.8 × 0.9 =
  6. 6.6.15 ÷ 5 =
  7. 7.3/5 × 6 =
  8. 8.2/9 ÷ 7/8 =
  9. 9.7.9 × 0.9 =
  10. 10.1/2 ÷ 1/7 =
  11. 11.2/3 × 4 =
  12. 12.One packet of rice weighs 3.6 kg. How many kg do 10 of them make in all? =
  13. 13.5/7 × 7 =
  14. 14.7/9 × 9 =
  15. 15.5/8 × 3/5 =
  16. 16.3/5 ÷ 1/9 =
  17. 17.One jug of milk holds 9.2 L. How many L do 3 of them make in all? =
  18. 18.6.3 × 0.8 =
  19. 19.3/8 × 7/8 =
  20. 20.8 ÷ 0.8 =
  21. 21.5.1 × 0.2 =
  22. 22.7/9 × 2 =
  23. 23.6/7 × 2/7 =
  24. 24.5.6 × 0.6 =
  25. 25.3.6 ÷ 0.3 =
  26. 26.7/8 × 7/8 =
  27. 27.0.4 ÷ 0.2 =
  28. 28.3/7 × 2 =
  29. 29.One bottle of oil holds 7.7 L. How many L do 10 of them make in all? =
  30. 30.2.56 ÷ 8 =
  31. 31.One bag of potatoes weighs 8.9 kg. How many kg do 8 of them make in all? =
  32. 32.4/7 × 2/9 =
  33. 33.18.52 ÷ 2 =
  34. 34.8.6 × 0.3 =
  35. 35.2/5 × 1/7 =
  36. 36.5/7 × 11 =
  37. 37.0.7 × 0.5 =
  38. 38.5.2 ÷ 4 =
  39. 39.1/5 ÷ 4/9 =
  40. 40.One bottle of oil holds 2.3 L. How many L do 9 of them make in all? =

Answer key

  1. 7/3
  2. 9
  3. 37.2
  4. 14/3
  5. 7.02
  6. 1.23
  7. 18/5
  8. 16/63
  9. 7.11
  10. 7/2
  11. 8/3
  12. 36
  13. 5
  14. 7
  15. 3/8
  16. 27/5
  17. 27.6
  18. 5.04
  19. 21/64
  20. 10
  21. 1.02
  22. 14/9
  23. 12/49
  24. 3.36
  25. 12
  26. 49/64
  27. 2
  28. 6/7
  29. 77
  30. 0.32
  31. 71.2
  32. 8/63
  33. 9.26
  34. 2.58
  35. 2/35
  36. 55/7
  37. 0.35
  38. 1.3
  39. 9/20
  40. 20.7

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