81/2 divided by 72/4

81/2 ÷ 72/4
=
9 4
Mixed Number: 2 1/4
Decimal: 2.25
Percentage: 225%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    72/4 becomes 4/72
  2. 2
    Multiply by reciprocal
    81/2 × 4/72
  3. 3
    Multiply numerators & denominators
    81 × 4 = 324    2 × 72 = 144
  4. 4
    Simplify
    324/144 = 9/4

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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