找规律,并填空.例如:1/5+2/5+3/5=2/5*3=6/5①1/11+2/11+3/11+4/11+5/11+6/11+7/11=4/11*()=()②19/1+19/2+19/3+19/4+19/5+19/6+19/7=4/11*()=()十万火急,急%>_

　　找规律,并填空.例如:1/5+2/5+3/5=2/5*3=6/5①1/11+2/11+3/11+4/11+5/11+6/11+7/11=4/11*()=()

　　②19/1+19/2+19/3+19/4+19/5+19/6+19/7=4/11*()=()

　　十万火急,

　　急

　　%>_