How do you write the fraction 8/11 as an equivalent fraction with a denominator of 55?
Let's start with our original fraction:
We want the denominator to change to the number 55, which is exactly 5 times larger than the current denominator of 11. So we can multiply the denominator by 5. But to not change the value of the fraction, we need to also multiply the numerator by 5 as well: