Julia writes 2 fractions with the same denominator that have numerators 5 and 7 what could the denominator be if the sum is less than 1

Angela rode his bike around a bike trail that was 1/4 of a mile long he rode his bike around the trail 8 * angelo says he wrote a total of 8/4 miles to russell says he's wrong and he actually and says that he actually wrote to my who is corrupt use words and trying to explain how you know.

Math it's appreciated. (picture provided)

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?