Subtracting Mixed Numbers

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/3.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

How do you subtract mixed numbers?

Back

To subtract mixed numbers, convert them to improper fractions, subtract the fractions, and then convert back to a mixed number if necessary.

Tags

CCSS.7.NS.A.1C

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.

Tags

CCSS.3.NF.A.3C

Front

Convert the mixed number 3 1/2 to an improper fraction.

Back

3 1/2 = 7/2.

Front

What is the first step in subtracting mixed numbers?

Back

Convert both mixed numbers to improper fractions.

Tags

CCSS.7.NS.A.1C

Front

If you have 4 1/4 and subtract 1 1/2, what is the first step?

Back

Convert both numbers to improper fractions: 4 1/4 = 17/4 and 1 1/2 = 3/2.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What do you do after converting mixed numbers to improper fractions?

Back

Subtract the fractions and simplify if possible.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you convert an improper fraction back to a mixed number?

Back

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

Front

What is the result of subtracting 2 2/3 from 4 1/3?

Back

1 2/3.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

If a baker used 3 7/8 bars of chocolate and had 1 5/8 left, how do you find the total she started with?

Back

Add the used chocolate and the leftover: 3 7/8 + 1 5/8 = 5 7/8. Then add the amount eaten.

Tags

CCSS.7.NS.A.1C