Answer:
You multiple the denominator by the hole number then you add the total from that by the numerator and you keep the pre-existing denominator.
Explanation:
For example 2 1/3 so you will multiple 3 denominator by 2 the hole number which gives you 6 then you add 1 the numerator which gives you 7 so the answer will be 7/3 because you keep the pre-existing denominator.