3/8×2/17÷3/8×2/17简便算法
问题描述:
3/8×2/17÷3/8×2/17简便算法
答
3/8×2/17÷3/8×2/17
=(3/8÷3/8)×(2/17×2/17)
=1×4/289
=4/289