负(1⼀30)⼀(2⼀3-1⼀10+1⼀6-2⼀5)等于多少

2025-06-22 11:10:01
推荐回答(1个)
回答1:

负(1/30)/(2/3-1/10+1/6-2/5)
=-1/(2/3×30-1/10×30+1/6×30-2/5×30)
=-1(20-3+5-12)
=-1/10