7/9+6/7=49/63+54/63=103/63=1又63分之40.7/9加6/7等于63分之103谢谢,请采纳
7/9+6/7=49/63+54/63=103/63=1又40/63
等于103/63
7/9+6/7=103/63
答案103/63