срочно !!(1/2-3/4)*12

Question

срочно !!(1/2-3/4)*12

Answer 1

(1/2-3/4)*12= -3
1) 1/2(*4)-3/4(*2)=4/8-6/8= -2/8=
= - 1/4
2) -1/4*12= -1/4*12/1= -3
Ответ: -3