128/2 divided by 81/4

128/2 ÷ 81/4
=
256 81
Mixed Number: 3 13/81
Decimal: 3.160494
Percentage: 316.05%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    81/4 becomes 4/81
  2. 2
    Multiply by reciprocal
    128/2 × 4/81
  3. 3
    Multiply numerators & denominators
    128 × 4 = 512    2 × 81 = 162
  4. 4
    Simplify
    512/162 = 256/81

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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