先约分,是假分数的化成带分数或整数48/36 90/54 60/84 21/35 24/84 51/68
问题描述：
先约分,是假分数的化成带分数或整数48/36 90/54 60/84 21/35 24/84 51/68
答
48/36 =4/3=1又1/3
90/54=5/3=1又2/3
60/84=5/7
21/35 =3/5
24/84 =2/7
51/68=3/4