Respuesta :

2 [ 39 / (16 - 12 * 4) + (9 + 6 * 3 * 7)]
2 [ 39 / (16 - 48) + (9 + 126)]
2 [ 39/-32 + 135]
2 [ -39/32 + 4320/32]
2 [ 4281/32]
8562/32
267 18/32 = 267 9/16