1 \(\frac{1}{4}\) is equal to \(\frac{5}{4}\) ( \(\frac{4}{4} + \frac{1}{4}\) ). To get your answer all you need to do is multiply the numerator 5, by the number of times Christina goes through the routine. You therefore get the answer:
\(\frac{5*3}{4} = \frac{15}{4}\)
this simplifies to 3 \(\frac{3}{4}\)