360 to 30 can be written as 360:30 and call also be written as 360/30
[tex]\frac{360}{30} = \frac{36 \times 10}{3 \times 10}= \frac{36}{3} = \frac{12 \times 3}{1 \times 3} = \frac{12}{1}[/tex]
360 to 30 simplified can be expressed as a ratio like 12:1, 12 to 1, or 12/1