How do I find the variable?

N x 1/5 = 2/15

N / 1/5 = 1/3

First you need to get all variables on one side. You do that by multiplying the reciprocal of the fraction to everything.

N (5/1) x 1/5 (5/1) = 2/15 (5/1)

5n=2/15 x 5/1

Then solve the multiplication problem

5n = 10/15

Then you should reduce the fraction

5n=2/3

Then divide both sides by 5

5n/5=N

2/3 divided by 5 = 2/15

N=2/15