-2又2/3+3又11/12-7又1/4-4又5/6
=-8/3+47/12-29/4-29/6
=-32/12+47/12-87/12-58/12
=130/12=65/6=10又5/6
剩下的约不约分你自己看来办
-2又3分之2+3又12分之11-7又4分之1-4又6分之5
= -2 -2/3 + 3 + 11/12 - 7 - 1/4 - 4 - 5/6
= -2 + 3 - 7 - 4 - 5/6 -2/3 + 11/12 - 1/4
= -10 + (11-10-8-3) /12
= -10 - 10 / 12
= -10 又6分之5
=-2/2/3+3/11/12-7/1/4-4/5/6
=-8/3+47/12-29/4-29/6
=-32/12+47/12-87/12-58/12
=-130/12
=-65/6
=-10/5/6
=-8/3+47/12-29/4-29/6
=-32/12+47/12-87/12-58/12
=-130/12
=-65/6
=-10又5/6