10/3-28/15+(4.375*(3-9/7))
=50/15-28/15+35/8*(21/7-9/7)
=22/15+35/48*12/7
=22/15+15/2
=269/15
12.5*(36-36/5)/3.6
=25/2*(180/5-36/5)/(18/5)
=25/2*144/5*5/18
=100
10/3-28/15+(4.375*(3-9/7))
=50/15-28/15+35/8*(21/7-9/7)
=22/15+35/48*12/7
=22/15+15/2
=269/15
12.5*(36-36/5)/3.6
=25/2*(180/5-36/5)/(18/5)
=25/2*144/5*5/18
=100