Question

9-(6/7-7)+[2-1/2-(7-1/2)]+3

Answer 1

9 - (6/7 - 7) + [2 - 1/2 - (7 - 1/2)]  + 3
9 - (6/7 - 49/7) + [2 - 1/2 - (14/2 - 1/2)] + 3
9 - (-43/7) + [2 - 1/2 - (13/2)] + 3
9 - (-43/7) + [4/2 - 1/2 - 13/2] + 3
9 + 43/7 + [-10/2] + 3
9 + 43/7 - 5 + 3
63/7 + 43/7 - 35/7 + 21/7
127/7 - 35/7
92/7
91/7 + 1/7
13 + 1/7
Respuesta:
13 1/7