Adding Fractions with Denominators 10 and 100

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 the denominator in a fraction represent?

Back

The denominator indicates how many equal parts the whole is divided into.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does the numerator in a fraction represent?

Back

The numerator shows how many parts of the whole are being considered.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

How do you add fractions with the same denominator?

Back

Add the numerators and keep the denominator the same. For example, 1/10 + 2/10 = (1+2)/10 = 3/10.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you add fractions with different denominators?

Back

Convert them to have a common denominator, then add the numerators. For example, 1/10 + 1/100 = 10/100 + 1/100 = 11/100.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the common denominator for 10 and 100?

Back

The common denominator is 100.

Front

Convert 1/10 to a fraction with a denominator of 100.

Back

1/10 = 10/100.

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

What is 3/10 + 25/100?

Back

3/10 = 30/100, so 30/100 + 25/100 = 55/100.

Tags

CCSS.4.NF.C.5

Front

What is the sum of 80/100 and 1/10?

Back

Convert 1/10 to 10/100, then 80/100 + 10/100 = 90/100.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is 40/100 + 20/100?

Back

40/100 + 20/100 = 60/100.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D