一道数学简算,急急急,回答必采纳!

2025-04-05 06:56:05
推荐回答(1个)
回答1:

7/9÷11/5+2/9×5/11+5/11
=7/9×5/11+2/9×5/11+5/11
=(7/9+2/9+1)×5/11
=2×5/11
=10/11