(6/5+9/11+1又5/7)/(3/11+2/5+4/7)简便计算

来源：学生作业学帮网编辑：学帮网时间：2024/05/16 19:19:10

(6/5+9/11+1又5/7)/(3/11+2/5+4/7)
= (9/11+6/5+12/7)/(3/11+2/5+4/7)
=3x(3/11+2/5+4/7)/(3/11+2/5+4/7)
=3