# Math Help - light year conversion

1. ## light year conversion

A ly (light year) is the distance that light travels in one year. The speed of light is 3.00 × 108 m/s. How many miles are there in a ly?
(1 mi = 1609 m and 1 yr = 365.25 days)

Here is what i do
300,000,000 m/s X $\frac{.1609mi}{1m}$ X $\frac{1yr}{31,557,600s}$=1.53 ly?

please close have found solution

2. You have your fractions the wrong way around. And also 1609 meters should be kept the same.

$\text{miles} = 300000000 \times \frac{1}{1609} \times 3155760$