4/5*7/9*5/8简便运算
问题描述:
4/5*7/9*5/8简便运算
答
4/5*7/9*5/8
=4/5×5/8×7/9
=1/2×7/9
=7/18
4/5*7/9*5/8简便运算
4/5*7/9*5/8
=4/5×5/8×7/9
=1/2×7/9
=7/18