Question 730786
This is how multiplication of fractions is done:    {{{(a/b)*(c/d)=(ac)/(bd)}}}


Here are a few ways to write the number, 1:
{{{(k/k)=1}}},  
{{{d/d=1}}}
{{{x/x)=1}}}
{{{y/y=1}}}
..



Doing something with the mixed number:
{{{6&1/2=6+1/2}}}
{{{6+1/2=6*(2/2)+1/2}}}
{{{6*(2/2)+1/2=12/2+1/2}}}
{{{12/2+1/2=13/2}}}