就是这样做的
解:5/6-3/8-1/4等于( 5/24 )
∵已知需求出5/6-3/8-1/4等于多少
∴5/6 - 3/8 - 1/4
= (5×4)/(6×4)-(3×3)/(8×3)-(1×6)/(4×6)
= 20/24 - 9/24 - 6/24
= 11/24 - 6/24
= 5/24
答:5/6-3/8-1/4等于5/24
先同化分母
5/6-3/8-1/4
=20/24-9/24-6/24
=(20-9-6)/24
=5/24
望采纳,谢谢
5/24
请采纳谢谢