如题所述
先将44/45*37化成（45/45-1/45）*37，就是37-1/45=36又45分之44
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第1个回答 2013-11-18
1 * 37 - 1/45 * 37=36 8/45
第2个回答 2013-11-18
=(1-1/45)*37
=1*37-45*37
=37-37/45
=36/8/45
=1*37-45*37
=37-37/45
=36/8/45
