(362+548*361)/(362+548-186)简便运算

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(362+548*361)/(362+548-186)简便运算
(362+548*361)/(362+548-186)简便运算

(362+548*361)/(362+548-186)简便运算
(362+548*361)/(362*548-186)吧.
原式=(361x549-1)/[(361+1)(549-1)-186]=(361x549-1)/(361x549-361+549-1-186)=(361x549-1)/(361x549-1)=1