3 4 - 2= ? решите дробь 5

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

[latex] \frac{3}{4}-2= \frac{3}{4}-\frac{8}{4} = -\frac{5}{4} = 1\frac{1}{4} [/latex]