7⼀9加1⼀6加5⼀6加5⼀7?

等于几等于几
2024-11-22 21:39:25
推荐回答(1个)
回答1:

7/9+1/6+5/6+5/7
=7/9+1+5/7
=49/63 +63/63+45/63
=157/63