Simple calculation of 177 13 / 5 - (21 3 / 1 + 77 13 / 5) - 83 / 1 177 5 / 13 - (21 2 / 3 + 77 5 / 13) - 8 1 / 3

Simple calculation of 177 13 / 5 - (21 3 / 1 + 77 13 / 5) - 83 / 1 177 5 / 13 - (21 2 / 3 + 77 5 / 13) - 8 1 / 3

177 13/5-(21 3/1+77 13/5)-83/1
=177 13/5-21 3/1-77 13/5-8 3/1
=(177 13/5-77 13/5)-(21 3/1+8 3/1)
=100-29 3/2
=70 3/1