简便计算:3/5+(-3/4+)(-2又3/5)+(-1/4)+1又1/17

问题描述:

简便计算:3/5+(-3/4+)(-2又3/5)+(-1/4)+1又1/17

3/5+(-3/4+)(-2又3/5)+(-1/4)+1又1/17
=(3/5-2又3/5)-(1/4+3/4)+1又1/17
=-2-1+1又1/17
=-1又16/17
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