a) (1/4)^2x(4/5)+2/5:(2/3)^3
b)(1-1/2):3/4 + 1/5:(1-4/5)^2
Olá
a) (1/4)^2x(4/5)+2/5:(2/3)^3
1/16x4/5+2/5:8/27
4/80+54/40
2/40+54/40
56/40 = 7/5
b)(1-1/2):3/4+1/5:(1-4/5)^2
1/2:3/4+1/5:(1/5)^2
4/6+1/5:1/25
2/3+25/5
2/3+5=17/3