3/4-(2/3)^-1 Помогите

3/4-(1(2/3)) 3/4-3/2=-3/4

[latex] \frac{3}{4} - \frac{2}{3}^{-1} = \frac{3}{4} -1: \frac{2}{3}= \frac{3}{4} - \frac{3}{2} = \frac{3-3*2}{4} = \frac{3-6}{4} =- \frac{3}{4} =-0,75[/latex]