九分之五乘六分之五加九分之四除以六分之五简算过程急········~·~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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九分之五乘六分之五加九分之四除以六分之五简算过程急········~·~~~~~~~~~~~~~~~~~~~~~~~~~~~~

九分之五乘六分之五加九分之四除以六分之五简算过程急········~·~~~~~~~~~~~~~~~~~~~~~~~~~~~~
九分之五乘六分之五加九分之四除以六分之五
简算过程
急········~·~~~~~~~~~~~~~~~~~~~~~~~~~~~~

九分之五乘六分之五加九分之四除以六分之五简算过程急········~·~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5/9*5/6+(4/9)/(5/6)
=25/54+4/9*6/5
=25/54+36/45
=125/270+216/270
=341/270

5/9*5/6+(4/9)/(5/6)
=25/54+4/9*6/5