十五分之八减九分之四等于几
问题描述：
十五分之八减九分之四等于几
答
8/15-4/9
=24/45-20/45
=(24-20)/45
=4/45
十五分之八减九分之四等于几
8/15-4/9
=24/45-20/45
=(24-20)/45
=4/45