(3又6分之5)+(-5又7分之1)+(-2又6分之1)+(-32又7分之6)
=23/6-36/7-13/6-220/7
=10/6-256/7
=5/3-256/7
=(5*7-256*3)/21
=-733/21
(3又6分之5)+(-5又7分之1)+(-2又6分之1)+(-32又7分之6)
=3+5/6-5-1/7-2-1/6-32-6/7
=(3-5-2-32)+(5/6-1/6-1/7-6/7)
=-36+2/3-1
=-37+2/3
=-36又1/3
(3又6分之5)+(-5又7分之1)+(-2又6分之1)+(-32又7分之6)
=3又5/6-5又1/7-2又1/6-32又6/7
=1又1/3-38
= -36又1/3