131313/272727+130130/270270+13001300/27002700=
问题描述:
131313/272727+130130/270270+13001300/27002700=
答
13/9可有过程=13*10101/9*30303+13*10010/9*30030+13*1000100/9*30030=13/9
131313/272727+130130/270270+13001300/27002700=
13/9可有过程=13*10101/9*30303+13*10010/9*30030+13*1000100/9*30030=13/9