【（7/16乘2又2/3加1/7）/（12又1/3减3又3/4除5/14）】乘1又10/11
问题描述：
【（7/16乘2又2/3加1/7）/（12又1/3减3又3/4除5/14）】乘1又10/11
答
=7/16*8/3+1/7*3/37-15/4*14/5*21/11
=7/6+3/259-21/11
=-12493/17094
答
(7/16 x 8/3 + 1/7) / (37/3 - 15/4 x 14/5 ) x 21/11
=55/42 x 6/11 x 21/11
=15/11