3/4-1/6等于多少？

Question

如题所述

Answer 1

通分然后把分母加减
3/4-1/6
=3*3/4*3-1*2/6*2
=9/12-2/12
=（9-2）/12
=7/12

Answer 2

3/4-1/6＝9/12-2/12＝7/12

Answer 3

18/24-4/24=7/12