简算(4又2/7+2又2/11)/(1又3/7+8/11)=?
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简算(4又2/7+2又2/11)/(1又3/7+8/11)=?
简算(4又2/7+2又2/11)/(1又3/7+8/11)=?
简算(4又2/7+2又2/11)/(1又3/7+8/11)=?
解,原式=(30/7+24/11)/(11/7+8/11)
=3(10/7+8/11)/(10/7+8/11)
=3