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John and Lisa are sharing a pizza. John eats 3/8 of the pizza, and Lisa eats 1/4 of it. What fraction of the pizza is left uneaten

2 Answers

3 votes

Answer:

3/8 of the pizza is left uneaten

Explanation:

3/8 + 1/4 is the same thing as 3/8 + 2/8

3/8 + 2/8 = 5/8

1 - 5/8 = 3/8

3/8

User Pescuma
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8.6k points
7 votes

Answer:

3/8

Explanation:

In order to find the fraction of the pizza left uneaten, we can subtract the fractions that John and Lisa ate from 1 (whole pizza).

John ate 3/8 of the pizza, and Lisa ate 1/4 of it.

To find the combined fraction they ate, add their fractions:

3/8 + 1/4

To add these fractions, we need a common denominator, which is 8 in this case:

3/8 + 2/8

Now that we have a common denominator, we can add the numerators:

(3 + 2)/8 = 5/8

So, John and Lisa together ate 5/8 of the pizza.

To find the fraction left uneaten, subtract this from 1:

1 - 5/8 = 8/8 - 5/8 = 3/8

So, 3/8 of the pizza is left uneaten.

User Nasima
by
9.0k points