0.6÷[2又1/2-(2/3+0.25)*0.6]?

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0.6÷[2又1/2-(2/3+0.25)*0.6]?0.6÷[2又1/2-(2/3+0.25)*0.6]?0.6÷[2又1/2-(2/3+0.25)*0.6]?2/3+0.25=2/3+1/4=11

0.6÷[2又1/2-(2/3+0.25)*0.6]?
0.6÷[2又1/2-(2/3+0.25)*0.6]?

0.6÷[2又1/2-(2/3+0.25)*0.6]?
2/3+0.25=2/3+1/4=11/12 11/12*0.6=11/20 5/2-11/20=39/20 0.6除以39/20=4/13 结果出来了~慢慢算