2-6⼀13÷9⼀29-2⼀3,用脱式计算,能简算的要简算。

2024-11-06 10:01:30
推荐回答(1个)
回答1:

2-6/13÷9/29-2/3
解:根据约分和通分的运用,
原式=2-6/13÷9/29-2/3
=2-6/13x29/9-2/3
=2-58/39-2/3
=2-1-19/39-26/39
=1-45/39
=-6/39
=-2/13