Originally Posted by
Debsta Yes!!
Some comments:
1. An easier method to solve:
$\displaystyle \frac{1}{3}+\frac{1}{5}=\frac{1}{x}$
$\displaystyle \frac{8}{15} =\frac{1}{x}$
$\displaystyle x=\frac{15}{8}$
(Your method is correct but probably not the most efficient)
2. $\displaystyle \frac{15}{8}$ hours = 1.875 hours = 1 hour 52.5 minutes or 1 hour 52 min 30 sec.
(I always like to express answers to word problems using the language we would normally use. We would never say "it took 15/8 hours" but we would say "it took I hour 52 and a half minutes".)