I think what she means here is that the fractions can continue infinitely but in the end none of the factions are going to be greater than 1.
Technically this is true, if Infinity in number form is an unimaginable amount of numbers, then putting any of those unimaginable amount of numbers under the fraction would never get you above 1 or below zero.
While I was saying this, I figured something out, if you put a fraction which is also part of an Infinity of numbers under 1, that would get you a whole number which is above 1.