Question

Luis, Marissa, and Federico are raising money for a school trip. Luis

has raised 6/7 of the total amount needed, Marissa has raised 5/9 of
the total amount needed, and Federico has raised 11/10 of the total
amount needed. Who has raised the most money?

Answer 1

Federico

Explanation:

It is Federico because he exceeded the money needed for the school trip.

6/7 is almost enough for the trip since you needed 7/7.

5/9 is still not enough for the trip since you needed 9/9.

11/10 is more than enough for the trip since all you needed was 10/10 and you have 11/10.

Another way to solve this is to find the lowest common multiples of 7, 9, and 10 and form fractions with the same denominator.

Answer 2

Frederico

Explanation:

We just look for the highest fraction

6/7 and 5/9 are both less than 1 (If the denominator is greater than the numerator, the fraction is less than 1)

11/10 is greater than 1. (If the denominator is less than the numerator, the fraction is greater than 1)

So the highest of the fractions is 11/10 and therefore Frederico has raised the most money