9除以8分之3-21分之5+4分之3=
问题描述:
9除以8分之3-21分之5+4分之3=
答
9÷(3/8) - 5/21 + 3/4
=9×8/3 -5/21 + 3/4
= 24 - 5/21 + 3/4
= 24 - 20/84 + 63/84
= 24 + 43/84
= 24又(43/84)