6/13×9/2+6/13÷3又2/7+16/23÷13/6
=6/13×9/2+6/13×7/23+16/23×6/13
=6/13×（9/2+7/23+16/23）
=6/13×11/2
=33/13
==6/13×9/2+6/13×7/23+16/23×6/13
=6/13×（9/2+7/23+16/23）
=6/13×（9/2+1）
=6/13×11/2
=33/13
=2又7/13
6/13×9/2+6/13÷3又2/7+16/23÷13/6
=54/26+6/13x7/23+16/23x6/13
=54/26+6/13x(7/23+16/23)
=54/26+6/13x1
=54/26+12/26
=66/26
=33/13
原式＝27/13+42/(23×13)+96/(23×13)
＝(102+42+96)/(23×13)
＝240/299
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