8⼀17÷7⼀5+5⼀7×9⼀17简便计算?

8/17÷7/5+5/7×9/17简便计算
2024-11-18 02:48:19
推荐回答(3个)
回答1:

可以这样做:
首先8/17 ÷ 7/5 =8/17 x 5/7
算式就变成了为:8/17 x 5/7 +5/7 x 9/17
=5/7 x (8/17+9/17)
=5/7 x 1
=5/7
希望能帮到你

回答2:

8/17÷7/5+5/7×9/17
=8/17×5/7+5/7×9/17
=5/7×(8/17+9/17)
=5/7×1
=5/7

回答3: