(2012又5/6)-2013又2/3+(-5又1/2)-(-4020又3/4)

问题描述:

(2012又5/6)-2013又2/3+(-5又1/2)-(-4020又3/4)

(2012又5/6)-2013又2/3+(-5又1/2)-(-4020又3/4)
=2012+5/6-2013-2/3-5-1/2+4020+3/4
=4014+5/12
=4014又5/12