Expressing the number 9 as a fraction with a denominator of 7 is straightforward. To do this, you simply need to create a fraction where the numerator (top part of the fraction) is the number 9 and the denominator (bottom part of the fraction) is the number 7. Therefore, you can write it as:
9/7
This fraction, 9/7, is an improper fraction because the numerator is larger than the denominator. If you want to convert this into a mixed number, you would take the 7 and see how many times it goes into 9. It goes in 1 time, with a remainder of 2. Thus:
9/7 = 1 2/7
So, 9/7 is the fraction representation of 9 with a denominator of 7, and it can also be expressed as a mixed number 1 2/7.