一又3⼀5×1⼀4 3又1⼀3×9⼀10-16⼀25÷4⼀15等于多少?

2024-11-02 13:52:56
推荐回答(1个)
回答1:

1又3/5×1/4 +3又1/3×9/10-16/25÷4/15
=8/5x1/4+10/3x9/10-12/5
=2/5+3-12/5
=17/5-12/5
=1