How would i solve these problems and am i doing them right?

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at __ link to graph: .

What is the missing step in this proof ?

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.