Answer:
Explanation:
A way you can find common denominators are like say you have a fraction, 2/3 and want to find a fraction equivalent to that, or common factors, you can multiply both the numerator and denominator by the same number. So if I have 2/3 and want a denominator or 9, I can do 2/3 times 3/3 and get 6/9 which is the same as 2/3. If you need anymore help or this is not the answer you wanted, just tell meh