0.63+0.37÷ (2+3/2+1+9/4)

问题描述:

0.63+0.37÷ (2+3/2+1+9/4)

0.6848
0.63+0.37÷ (2+3/2+1+9/4)
=0.63+0.37/(2+1.5+1+2.25)
=0.63+0.37/6.75
=0.63+0.0548
=0.6848