7/5÷5/6=5/7×6/5=6/7
5/7/(5/6)=5/7x6/5=6/712x7/8=3x7/2=21/2=10.51-1/2-1/3=1/2-1/3=3/6-2/6=1/67/11/(14)=7/11x1/14=1/22