0.2/(6/1+6/5/9/10) 简算
1个回答
0.2/(6/1+6/5/9/10)
=1/5÷(6+6/5×10/9)
=1/5÷(6+4/3)
=1/5÷22/3
=1/5×3/22
=3/110
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