Stein adding fractions with common denominators March 22, 2023

Front

What is a fraction?

Back

A fraction is a way to show a part of a whole. It has two numbers: the top number (numerator) shows how many parts we have, and the bottom number (denominator) shows how many equal parts the whole is divided into.

Front

What does it mean to add fractions with the same denominator?

Back

When adding fractions with the same denominator, you keep the denominator the same and add the numerators together.

Front

What is the sum of 2/7 + 3/7?

Back

5/7

Front

What is the sum of 4/11 + 3/11?

Back

7/11

Front

What is the sum of 2/12 + 3/12?

Back

5/12

Front

What is the sum of 4/6 + 2/6?

Back

1 (or 6/6)

Front

If Kayla has 3/9 of a pizza and Lille gives her 2/9 of a pizza, how much pizza does Kayla have now?

Back

5/9

Front

What is a common denominator?

Back

A common denominator is a number that is a multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

How do you find a common denominator for 1/4 and 1/6?

Back

The common denominator for 1/4 and 1/6 is 12, because 12 is the smallest number that both 4 and 6 can divide into evenly.

Front

What is the numerator in a fraction?

Back

The numerator is the top number in a fraction that shows how many parts we have.