5 / 6 + 13 / 42 + 15 / 56, simple operation

5 / 6 + 13 / 42 + 15 / 56, simple operation

5/6+13/42+15/56,
=(35+13)/42+15/56
=48/42+15/56
=8/7+15/56
=(64+15)/56
=79/56