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.

Tags

CCSS.3.NF.A.3C

Front

Why can't we just add the numerators and denominators of fractions with different denominators?

Back

Because the size of the pieces is different.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

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

Back

Find the Lowest Common Denominator (LCD).

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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 sum of 1/3 and 1/4?

Back

The sum is 7/12 after finding the LCD and adjusting the fractions.

Tags

CCSS.7.NS.A.1C

Front

What is the result of adding 1 1/3 and 4 1/4?

Back

The result is 5 7/12.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the result of adding 8 4/5 and 9 1/10?

Back

The result is 17 9/10.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the first step in subtracting mixed numbers?

Back

Find the Lowest Common Denominator (LCD) for the fractions.

Tags

CCSS.7.NS.A.1C

Front

What is the result of subtracting 8 6/9 and 3 2/5?

Back

The result is 5 12/45.

Tags

CCSS.7.NS.A.1C

Front

What is the result of 6 1/2 - 2 2/3?

Back

The result is 3 5/6.

Tags

CCSS.7.NS.A.1C