90/4 divided by 180/4

90/4 ÷ 180/4
=
1 2
Decimal: 0.5
Percentage: 50%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    180/4 becomes 4/180
  2. 2
    Multiply by reciprocal
    90/4 × 4/180
  3. 3
    Multiply numerators & denominators
    90 × 4 = 360    4 × 180 = 720
  4. 4
    Simplify
    360/720 = 1/2

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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