Subtracting Mixed Numbers with Regrouping

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?

Back

To subtract mixed numbers, first subtract the whole numbers, then subtract the fractions. If the fraction of the top number is smaller than the bottom, regroup from the whole number.

Tags

CCSS.7.NS.A.1C

Front

What does regrouping mean in subtraction?

Back

Regrouping means borrowing from the whole number to make the fraction larger when the top fraction is smaller than the bottom.

Tags

CCSS.7.NS.A.1C

Front

What is the first step in subtracting 4 1/3 - 1 2/3?

Back

The first step is to subtract the whole numbers: 4 - 1 = 3.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the second step in subtracting mixed numbers?

Back

The second step is to subtract the fractions. For 1/3 - 2/3, you need to regroup.

Tags

CCSS.7.NS.A.1C

Front

How do you convert 4 1/3 to an improper fraction?

Back

Multiply the whole number by the denominator and add the numerator: 4 * 3 + 1 = 13, so 4 1/3 = 13/3.

Front

What is the improper fraction for 1 2/3?

Back

1 2/3 = 1 * 3 + 2 = 5/3.

Front

What is the result of 4 1/3 - 1 2/3?

Back

The result is 2 2/3.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract 7 2/7 - 3 5/7?

Back

Subtract the whole numbers: 7 - 3 = 4. Then subtract the fractions: 2/7 - 5/7 requires regrouping.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the result of 6 1/4 - 2 6/8?

Back

The result is 3 1/2.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2