(-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
答
-5╱6
答
(-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
答
=-3/4*5/2*4/9
=-5/6