Question 893843
First convert the middle value to an integer by multiplying numerator and denominator by 2.
{{{1/3.5=2/7}}}
Now find a common denominator.
{{{2*5*7=70}}}
{{{1/5+2/7+1/2=14/70+20/70+35/70}}}
 
{{{1/5+2/7+1/2=69/70}}}