4 - ( 181 / 40 - 5 , 25 ) : 29 / 20 =

Question

4 - ( 181 / 40 - 5 , 25 ) : 29 / 20 =

Answer 1

1)181/40-5,25=181/40-21/4= -29/40

2)-29/40:29/20= -29/40*20/29= -1/2

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