(-3⼀7)X(-1⼀2)X(-8⼀15) (-8)X1.25 7⼀10X(-3⼀14) (-3⼀16)X(-8⼀9) 7.5X(-8.2)X0X(-19.1) -3⼀14X5⼀7

2025-06-27 20:31:16
推荐回答(1个)
回答1:

(-3/7)X(-1/2)X(-8/15)
=-4/35
(-8)X1.25
=-10
7/10X(-3/14)=-3/20
(-3/16)X(-8/9) =1/6
7.5X(-8.2)X0X(-19.1) =0
-3/14X5/7=-15/98