计算172*87+11*9又1/4+53.7*1.9急!
问题描述：
计算172*87+11*9又1/4+53.7*1.9急!
答
172*87+11*9又1/4+53.7*1.9
=172*87+11*37/4+53.7*(2-0.1)
=172*87+101.75+107.4-5.37
=14964+203.78
=15167.78