Subtracting Fractions with Unlike Denominators

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (part) and 'b' is the denominator (whole).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to subtract fractions?

Back

Subtracting fractions means finding the difference between two fractions, which involves making their denominators the same before performing the subtraction.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you find a common denominator for fractions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators of the fractions you are working with.

Front

What is an equivalent fraction?

Back

An equivalent fraction is a fraction that represents the same value as another fraction, even though the numerator and denominator may be different.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

How do you convert mixed numbers to improper fractions?

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that result over the original denominator.

Front

What is the first step in subtracting fractions with unlike denominators?

Back

The first step is to find a common denominator for the fractions you want to subtract.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

1/2 - 1/4 = ?

Back

1/4

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

1 5/8 - 3/4 = ?

Back

7/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

You have a bag of chips. You give away 1/3 and 1/5 of the bag. What fraction is left?

Back

7/15 of the bag.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Jocelyn ran 1/3 mile and then 1/2 mile. How much farther did she run on Thursday?

Back

1/6 mile.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2