Aaliyah ate 7⁄8 of her mini-pizza, while james only ate 3⁄4 of his mini-pizza. how much more did aaliyah eat

The first step to solving this is making the fractions have the same denominator.

The fractions we have are 7/8 and 3/4

The easiest way to find the common denominator is turn the 8 in 7/8 to a 4

So lets find 1/4 of 8

That being 2, now we need 3/4 of 8

2 x 3 = 6   6/8

3/4 and 6/8 are the same thing just we changed the numbers

Now instead of 3/4 and 7/8. We have 6/8 and 7/8

Finally what needs to be solved is how much MORE
 did Aliyah eat then James

Aliyah ate 7/8

James ate 6/8

7/8 - 6/8 = 1/8

Meaning Aliyah ate 1/8 more of her mini pizza than James

Hope this helps!
Brainliest is always appreciated if you feel its deserved. :)