Question

(1/4)².4/5+2/5:(2/3)³

Answer 1

1/4)² =  1/16
(2/3)³ = 8/27
1/16 * 4/5 + 2/5 : 8/27 =  
1/16 *   4/5 =   4/80   =  1/20  ****( fiquei em dúvida se aqui e vezes )
2/5 : 8/27= 2/5 * 27/8 = 54/40 ****
1/20  + 54/40 =( 2+ 54)/40 = 56/40  = 7/5 ****