Respuesta :

Zero. 3/7 is less than half, therefore, it is closer to zero not one.
7/7 is 1      0/7 is 0, now, what's right in the middle of both?   3.5/7

because 3.5 is half-way of 7, for 3.5/7 is half-way of 7/7.

now 3/7 wil be more to the left-hand-side, just like 4/7 will be more to the right-hand-side.