They earned 6 x $3 = $<<6*3=18>>18 for the shoes they sold.
They earned 18 x $2 = <<18*2=36>>36 for the shirts they sold.
So, they earned $18 + $36 = $<<18+36=54>>54 in total for the clothing they sold.
Therefore, Sab and Dane earned $54 / 2 = $<<54/2=27>>27 each.
#### 27