51/2 divided by 90/4

51/2 ÷ 90/4
=
17 15
Mixed Number: 1 2/15
Decimal: 1.133333
Percentage: 113.33%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    90/4 becomes 4/90
  2. 2
    Multiply by reciprocal
    51/2 × 4/90
  3. 3
    Multiply numerators & denominators
    51 × 4 = 204    2 × 90 = 180
  4. 4
    Simplify
    204/180 = 17/15

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.

Try Another Calculation