(2⼀7+3⼀14)÷9⼀49-1.5=多少

(2/7+3/14)÷9/49-1.5=多少
2025-06-26 11:47:24
推荐回答(1个)
回答1:

(2/7+3/14)÷9/49-1.5
=1/2÷9/49-1.5
=49/18-3/2
=22/18
=11/9