0.2/(6/1+6/5/9/10) 简算

问题描述:

0.2/(6/1+6/5/9/10) 简算

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