x/13 is less than 4/5

To solve this inequality, we can cross multiply:

5 * x < 13 * 4

5x < 52

Now, divide both sides by 5:

x < 52/5

Simplifying the fraction:

x < 10.4

Therefore, the solution to the inequality x/13 is less than 4/5 is x < 10.4.