(7/12-3/8)*24-5/9 简便运算
问题描述：
(7/12-3/8)*24-5/9 简便运算
答
(7/12-3/8)×24-5/9
=(7/12 ×24)-(3/8 ×24)-5/9
=14-9-5/9
=5-5/9
=45/9-5/9
=40/9
答
(7/12-3/8)*24-5/9
=14-9-5/9
=5-5/9
=4又4/9