jandimar

$17.8°$

The degree  rounded to the nearest whole number is $18$

To find the minute divide the decimal portion of the degree by $60$

$\frac{0.8}{60}$

$\frac{8}{600}$

$\frac{1}{75}$

0.0133333333333333...

The minute rounded to the nearest whole number is $0$

To find the second divide the decimal portion of the degree by 60

$\frac{0.0133333333333333...}{60}$

$\frac{\frac{2}{15}}{60}$

$\frac{2}{15}\times\frac{1}{60}$

$\frac{2}{900}$

$\frac{1}{450}$

$0.0022222222222222...$

The second rounded to the nearest whole number is $0$

Putting the degree minute and second numbers togother and you get $18°0"0'$

There are 60 minutes in every degree......so.....

In  .8   of a degree there are   .8 x 60  = 48 minutes

So     17.8°    =   17 degrees, 48 minutes