the ratio is another way of doing division it is written in this form 2:4. which is read 2 to 4 and is the same as saying 2/4 which is equivalent to 1/2 or 1:2
6:9 is six to nine or 6/9 which = 0.667:1 when you solve it
5:7 is five to seven or 5/7 which = 0.714:1 when you solve it
10:2 is ten to two or 10/2 which = 5:1 when you solve it
200:50 is two hundred to fifty or 200/50 which = 4:1 when you solve it by dividing second number into the
Ratio shows the relationship between two numbers indicating how many times the fist number contains the second number. A ratio can be a fraction.