Conjugate/Rational Number? Please include a detailed explanation so I can learn to do it by myself, Thank you!

Which of the following are parts of a sphere

Sunday: 1 1 2 monday: 1 tuesday: 2 1 2 wednesday: 1 3 4 thursday: 2 friday: 1 1 2 saturday: 2 jenna is a swimmer and trains every day. the schedule shown outlines the number of hours she trains each day. what is the total number of hours that jenna trains during the week?

Write the rational number in lowest terms 99/-15