What is the ratio of the number of days in the week that do not begin with the letter "T" to the total number of days in the week?

The days in the week whose names don't begin with 'T' are Sunday, Monday, Wednesday, Friday, and Saturday. I counted them, and found that there are five (5) of them. Then I counted the number of days in a full week, no matter how they're spelled. I counted seven (7) that time. The ratio of 5 to 7 is. 5:7 or 5/7.

5:7 because there are 5 days that do not start with "T" and 7 days in a week