Question

Sendo A= (8/5) + (-6/5) - (-2/5), B= {(-1/3) - [(1/5) + (1 1/3)] - 2/5} e C= (1/30) + 0.5 + 1/6, indique o valor da expressão A + B + C

Answer 1

A= 8/5-6/5+2/5= 4/5
B= {(-1/3-[3+20/15]-2/5}={1/3-23/15-2/5= -5-23-6/15= -34/15
C= 1/30+1/2+1/6= 1+15+5/30= 21/30
A+B+C= 4/5+(-34/15)+ 21/30= 24-68+21/30= -23/30