Question

помогите решить пожалуйста..
-48+54
-15-28
33-41
-14-(-12)
3,2-5,6
-3/10-2/15

Answer 1

$-48 + 54=54-48=6\\\\-15-28=-(15+28)=-43\\\\33-41=-(41-33)=-8\\\\-14-(-12)=-14+12=12-14=-2\\\\3,2-5,6=-(5,6-3,2)=-2.4\\\\-\frac{3}{10}-\frac{2}{15}=-\frac{3*3}{10*3} -\frac{2*2}{15*2}=-\frac{9}{30}-\frac{4}{30}=-(\frac{9}{30}+\frac{4}{30})=-\frac{13}{30}$