Question

calcule a expressão { 2/3:[47+(5/8-2)×4/9}=

Answer 1

{2/3:[47+(5/8-2)x4/9}
{2/3:[47-11/8x4/9}
{2/3:[47-44/72}
{2/3:[$\frac{3.384-44}{72}$}
{2/3x3.340/72}
2/3 x 72/3.340
= 144/10.020
simplificando ambos por 12 dá 12/835