Answer :

Final answer:

Marcelo has 3/4 of a pizza left after giving a quarter to his brother.


Explanation:

Marcelo has 3/4 of a pizza after giving a quarter to his brother. To determine how much pizza he has left, we subtract the fraction he gave away from the whole pizza: 1 - 1/4 = 3/4. Therefore, Marcelo has 3/4 of the pizza remaining.


Learn more about Fraction Subtraction here:

https://brainly.com/question/30489902