1-5/24-11/24-13/15+1/5+13/15=?
问题描述:
1-5/24-11/24-13/15+1/5+13/15=?
答
=1-2/3+1/5=15/15-10/15+3/15=8/15
答
1-5/24-11/24-13/15+1/5+13/15
=8/24-13/15+3/15+3/15
=8/24+3/15
=40/120+24/120
=64/120
=8/15