20/2 divided by 81/4

20/2 ÷ 81/4
=
40 81
Decimal: 0.493827
Percentage: 49.38%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    81/4 becomes 4/81
  2. 2
    Multiply by reciprocal
    20/2 × 4/81
  3. 3
    Multiply numerators & denominators
    20 × 4 = 80    2 × 81 = 162
  4. 4
    Simplify
    80/162 = 40/81

How to Divide Fractions

To divide fractions, use "Keep, Change, Flip": keep the first fraction unchanged, change the ÷ to ×, then flip the second fraction. Multiply and simplify.

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