-1又2⼀3×3⼀5+(-1⼀2)÷(2⼀5)等于多少

-1又2/3×3/5+(-1/2)÷(2/5)等于多少
2024-12-03 22:30:32
推荐回答(1个)
回答1:

-1又2/3×3/5+(-1/2)÷(2/5)
=-5/3x3/5-1/2x5/2
=-1-5/4
=-2又1/4