Question 1087943
Use parentheses. 
It makes for better readability.
{{{(5/6)/((3/6)*(3/15))=(5/6)/((1/2)*(1/5))}}}
{{{(5/6)/((3/6)*(3/15))=(5/6)/(1/10)}}}
{{{(5/6)/((3/6)*(3/15))=(5/6)*(10/1)}}}
{{{(5/6)/((3/6)*(3/15))=25/3}}}