1⼀5÷[(2⼀3+1⼀5)×1⼀13]=

2024-12-19 10:39:09
推荐回答(3个)
回答1:

1/5÷[(2/3+1/5)×1/13]
=1/5÷(13/15x1/13)
=1/5÷1/15
=1/5x15
=3

回答2:

1/5/1/15=1/5*15=3

回答3:

3