(11⼀8+8⼀9)X2⼀3等于多少,用简便计算。

2025-05-17 08:05:10
推荐回答(2个)
回答1:


回答2:

(11/8+8/9)X2/3
=11/8x2/3+8/9x2/3
=11/12+16/27
=99/108+64/108
=163/108
=1又55/108