Вычислите (3/4-5/6)*3+(3/4+5/6)*4

Question

Вычислите (3/4-5/6)*3+(3/4+5/6)*4

Answer 1

9/12-10/12=-1/12*3=-1/4
9/12+10/12=19/12*=1 7/12*4=6 1/3
6 1/3-1/4=6 1/12