(-2/3+(-2/15))+(-1,85+(-1,35))=

Question

(-2/3+(-2/15))+(-1,85+(-1,35))=

Answer 1

-2/3+(-2/15)=- 2/3-2/15=(-2 * 5-2 * 1)/15 = -10/15 - 2/15 = - 12/15 = - 4/5=-0,8
-1,85+(-1,35)=-3,2
-0,8+(-3,2)=-4
ответ: -4