Question 647199
n/4+n/3=1/2

Find a common denominator for the L side of the equation.
3n/12+4n/12=1/2
(3n+4n)/12=1/2
7n/12=1/2
7n/12*12=1/2*12
7n=6
7n*1/7=6*1/7
n=6/7



Substitute this value back into the original equation to make sure it is correct.