Hi! First 5/6=0.8333333... and 3/7=0.42857143 So divide 5/6 (because the number is infinite) by 0.42857143 which gives you 1.94444... (infinite) That is your answer.
First turn 5/6 into a decimal. 5/6= 0.8333333... Do the same for 3/7. 3/7= 0.4285714286... So you would then divide both of these values 0.8333/0.4385714= 1.9444444....2