11/7=1+4/7=1+1/(7/4)=1+1/(1+3/4)=1+1/[1+1/(4/3)]=1+1/[1+1/(1+1/3)]
1+1/[1+1/1]=1+1/2=3/2 2*11-3*7=1 72*11-113*7=1
13/11=1+2/11=1+1/(11/2)=1+1/(5+1/2)
1+1/6=7/6 6*13-7*11=1 61*13-72*11=1
这三个数最小是791,792,793
这三个数的和最小是2376
11/7=1+4/7=1+1/(7/4)=1+1/(1+3/4)=1+1/[1+1/(4/3)]=1+1/[1+1/(1+1/3)]
1+1/[1+1/1]=1+1/2=3/2 2*11-3*7=1 72*11-113*7=1
13/11=1+2/11=1+1/(11/2)=1+1/(5+1/2)
1+1/6=7/6 6*13-7*11=1 61*13-72*11=1
这三个数最小是791,792,793
这三个数的和最小是2376