-2,8-(4,2-(1,7+(-2 1/3+1 5/6)))

Question

-2,8-(4,2-(1,7+(-2 1/3+1 5/6)))

Answer 1

-2.8-(21/5-(17/10+(-9/2)))
-2.8-(21/5-(17/10-9/2))
-2.8-(21/5-(-14/5))
-2.8-(21/5+14/5)
-2.8-7=-9.8