Question

53-58
-18-43
-13+20
15-(-7)
-4,8-2,3
-7/12+7/8

Answer 1

53-58=-5
-18-43=-61
-13+20=7
15-(-7)=22
-4,8-2,3=-7,1
$frac{-7}{12}$+$frac{7}{8} = frac{-14}{24} + frac{21}{24} = frac{7}{24}$

Answer 2

ответы 5;-61;7;22;-7,1;7/24.