混合计算:0.63+0.37/(2又2/3+1又4/9)

问题描述:

混合计算:0.63+0.37/(2又2/3+1又4/9)

0.63+0.37/(2又2/3+1又4/9)
=0.63+0.37/(37/9)
=0.63+0.09
=0.64