Question

how do i solve this 
n+1/7=2/3

Answer 1

n+3/21=14/21
n=11/21
Hope this helps!

Answer 2

$n+ \frac{1}{7}= \frac{2}{3}\\ \\n = \frac{2}{3}-\frac{1}{7}\\ \\n=\frac{14}{21}-\frac{3}{21}\\ \\n=\frac{11}{21}$