2-16/7+15/2-16/1+15/13-1又30/29
问题描述:
2-16/7+15/2-16/1+15/13-1又30/29
答
2-16/7+15/2-16/1+15/13-1又30/29
=2-(16/7+16/1)+15/13+15/2-1又30/29
=2-2/1+1-1又30/29
=1又30/14