Question

 Determine o valor de A 
(2/5-1/2)/2/5×1/2


​

Answer 1

Resposta:

1-[2/5-(1/2+3/4)-0,5]

1-[2/5+1/2-3/4-5/10]

1+2/5-1/2+3/4+5/10

mmc 5,2,4,10=20

20+8-10+15+10=43/20

espero ter ajudado