Trent can deliver his newspapers in 30 minutes. It takes Lois 20 minutes to do the same route. How long would it take them to deliver the newspapers if they work together?

Let x = length of time it would them to deliver the newspapers working together

30 minutes = 1/2 hours

20 minutes = 1/3 hours

(1/2) + (1/3) = (1/x)

I found the answer to be (6/5) hours.

Is this correct?

I also found out that multiplying (2 × 3) and dividing by (2 + 3) leads to (6/5) hours.

Correct?