Since a dozen is equal to 12, then 3 dozen eggs are equal to 12 x 3 = <<3*12=36>>36 eggs.
Tricia will use 36 x 1/4 = <<36*1/4=9>>9 eggs for making crepes.
So there are 36 - 9 = <<36-9=27>>27 eggs left.
27 x 2/3 = <<27*2/3=18>>18 eggs will be used for making cupcakes.
Thus, there are only 27 - 18 = <<27-18=9>>9 eggs left to make sunny-side-up eggs for breakfast.
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