0.125*3/4+1/8*8.25+125%+0.374*48+0.62*37.4-3.74简算求步骤orz

0.125*3/4+1/8*8.25+125%+0.374*48+0.62*37.4-3.74简算求步骤orz
0.125*3/4+1/8*8.25+125%+0.374*48+0.62*37.4-3.74简算
求步骤orz

0.125*3/4+1/8*8.25+125%+0.374*48+0.62*37.4-3.74简算求步骤orz
首先,0.125 = 1/8 = 125%/10,
0.25=1/4,
所以原题=1/8（3/4+8.25+10）+3.74（4.8+6.2-1）
=1/8*19+3.74*10
=19/8+37.4
=2.375+37.4
=39.775