能简便简便 （1/3-1/4)除1/2+5/6 （1/2+1/3-1/4)X24 4/9X1/6+5/9除6 4/7-3/7除15/14
问题描述：
能简便简便 （1/3-1/4)除1/2+5/6 （1/2+1/3-1/4)X24 4/9X1/6+5/9除6 4/7-3/7除15/14
答
（1/3-1/4)除1/2+5/6
=1/3除1/2-1/4除1/2+5/6
=2/3-1/2+5/6
=4/6-3/6+5/6
=6/6
=1
（1/2+1/3-1/4)X24
=1/2 x24 +1/3 x24- 1/4x24
=12+8-6
=14
4/9X1/6+5/9除6
=4/9X1/6+5/9X1/6
=(4/9+5/9)X1/6
=9/9X1/6
=1/6
4/7-3/7除15/14
=4/7-3/7 x14/15
=4/7-2/5
=20/35-14/35
=6/35