(-3/4)x(-2又1/2)÷(-2又1/4)计算

问题描述:

(-3/4)x(-2又1/2)÷(-2又1/4)计算

-5╱6

(-3/4)x(-2又1/2)÷(-2又1/4)计算
=-3/4×5/2×4/9
=-15/8×4/9
=-5/6

=-3/4*5/2*4/9
=-5/6