https://scontent-b-ams.xx.fbcdn.net/...44966633_n.jpg
33/5=6+3/5=6+1/(5/3)=6+1/(1+2/3)==6+1/[1+1/(3/2)]=6+1/[1+1/(1+1/2)] a=6 b=1 c=1 d=2 6+1+1+2=10