(7⼀9十7⼀36)x7⼀9用简便方法?

2025-04-14 15:10:16
推荐回答(1个)
回答1:

你好,很高兴为你解答:
=(49/9)×(5/36)
=(49×5)/(9×36)
=0.7561728395
≈0.76