Answer:
7 12/8 = 7 + 1 4/8 = 8 4/8
Explanation:
To do the first step, we basically want to know what value of x is where 12/8 = 1 x/8. 12/8 is 8/8 + 4/8, or 1 4/8, so x = 4. Now, to do the last step, we just calculate 7 + 1 4/8. This is just 7 + 1 + 4/8, or 8 + 4/8, or 8 4/8.