Adding and Subtracting Mixed Numbers

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/2.

Front

Why can't we just add the numerators and denominators if we need to add two fractions with different denominators?

Back

Because the size of the pieces is different.

Front

What is the first step in adding fractions with different denominators?

Back

Find the Lowest Common Denominator (LCD).

Front

How do you find the Lowest Common Denominator (LCD) of two fractions?

Back

The LCD is the smallest number that both denominators can divide into evenly.

Front

What is the result of 6½ - 2⅔?

Back

3 5/6.

Front

What is the result of 1 1/3 + 4 1/4?

Back

5 7/12.

Front

What is the result of 8 5/7 - 7 2/3?

Back

1 1/21.

Front

What do you do after finding the LCD when adding or subtracting fractions?

Back

Convert each fraction to an equivalent fraction with the LCD.

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator, such as 9/4.

Front

How can you convert an improper fraction to a mixed number?

Back

Divide the numerator by the denominator to get the whole number, and the remainder becomes the new numerator.