Simple calculation of 6 / 7-8 / 7 * 5 / 8 + 5 / 14

Simple calculation of 6 / 7-8 / 7 * 5 / 8 + 5 / 14

6 / 7-8 / 7 * 5 / 8 + 5 / 14
=6 / 7-5 / 7 + 5 / 14
=1 / 7 + 5 / 14
=7 out of 14
=1 / 2