8⼀9乘8⼀9除以8⼀9乘8⼀9简便计算

2025-06-23 03:05:34
推荐回答(3个)
回答1:

原式=8/9x8/9=64/81

回答2:

(8/9)x(8/9)/(8/9)x(8/9)
=(8/9)x(8/9)x(9/8)x(8/9)
=<(8/9)x(8/9)>x<(9/8)x(8/9)>
=64/81

回答3: