(28/33-14/27)*3/14+32/99 怎么算?
问题描述:
(28/33-14/27)*3/14+32/99 怎么算?
答
(28/33-14/27)*3/14+32/99
=28/33*3/14-14/27*3/14+32/99
=1/11-1/9+32/99
=9/99-11/99+32/99
=10/33