8/9-3/8+1/9 7/9-2/5-5/18 5/12+3/4+2/3 1/2+(2/3-1/4) 1-1/8-3/10 5/6-(1/2-1/3)计算要有过程

问题描述:

8/9-3/8+1/9 7/9-2/5-5/18 5/12+3/4+2/3 1/2+(2/3-1/4) 1-1/8-3/10 5/6-(1/2-1/3)计算要有过程

8/9-3/8+1/9 =8/9+1/9-3/8 =1-3/8=5/87/9-2/5-5/18=7/9-5/18-2/5=(14-5)/18-2/5=1/2-2/5=(5-2)/10=3/105/12+3/4+2/3 =(5+3*3+2*4)/12=22/12=11/6=1又6分之51/2+(2/3-1/4)=1/2-1/4+2/3=1/4+2/3=(3+8)/12=11/12 1-1/...