Subtracting Mixed Numbers with Like Denominators

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

How do you subtract mixed numbers with like denominators?

Back

To subtract mixed numbers with like denominators, subtract the whole numbers and then subtract the fractions.

Tags

CCSS.7.NS.A.1C

Front

What does 'like denominators' mean?

Back

Like denominators mean that the fractions have the same bottom number (denominator), such as 1/4 and 3/4.

Tags

CCSS.4.NF.B.3A

Front

Solve: 3 1/4 - 1 1/4

Back

2.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

Solve: 5 2/5 - 2 1/5

Back

3 1/5.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the first step in subtracting mixed numbers?

Back

The first step is to subtract the whole numbers.

Tags

CCSS.7.NS.A.1C

Front

If you have 4 3/8 - 2 1/8, what do you subtract first?

Back

You subtract the whole numbers first: 4 - 2 = 2.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What do you do if the fraction part is larger in the top mixed number?

Back

If the fraction part is larger, you may need to borrow 1 from the whole number.

Front

Solve: 6 5/12 - 3 2/12

Back

3 1/12.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is borrowing in subtraction of mixed numbers?

Back

Borrowing is taking 1 from the whole number to make the fraction larger.

Tags

CCSS.7.NS.A.1C