能约分就约分 5/9 +8/9 1/8+7/8 19/
问题描述:
能约分就约分 5/9 +8/9 1/8+7/8 19/
能约分就约分 5/9 +8/9 1/8+7/8 19/24-13/24 19/36+3/36 13/12-13/3 7/8-8/3+3/8 8/9+4/11+1/9 1-1/6-1/6 3/4+1/4+1/4
答
1:13/92:13:1/44:11/185:-39/126:-34/247:135/998:2/39:5/4