48-(-15)= 25-32= -5,5-2,8= 3,7-4,5= -3/4-(5/6)=

Question

48-(-15)=
25-32=
-5,5-2,8=
3,7-4,5=
-3/4-(5/6)=

Answer 1

48-(-15)=48+15=63
25-32=7
-5,5-2,8=-8,3
3,7-4,5=-0,8
-3/4-5/6=-9/12-10/12=-19/12=-1. 7/12

Answer 2

48-(-15)=48+15=63
25-32=-7
-5.5-2.8=-8.3
3.7-4.5=-0.8
-3/4-5/6= приводим к общему знаменателю 12
3*3=9
5*2=10
(9+10)/12=19/12=1целая7/12