1/17+括号5/8+1/7括号乘以八怎么简便计算？1/17+括号5/8+1/7括号乘以八=1/17+(5/8+1/7)*8=1/17+5/8*8+1/7*8=1/17+5+1+1/7=6+(1/7+1/17)=6+24/119=6又24/119
