Adding fractions with like denominators

Front

What is the process for adding fractions with like denominators?

Back

To add fractions with like denominators, keep the denominator the same and add the numerators. For example, a/b + c/b = (a+c)/b.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is a like denominator?

Back

Like denominators are denominators that are the same in two or more fractions.

Tags

CCSS.4.NF.A.1

CCSS.5.NF.B.5B

Front

What is the sum of 4/6 and 2/6?

Back

The sum of 4/6 and 2/6 is 6/6, which simplifies to 1.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the sum of 2/12 and 3/12?

Back

The sum of 2/12 and 3/12 is 5/12.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the sum of 4/9 and 2/9?

Back

The sum of 4/9 and 2/9 is 6/9, which can be simplified to 2/3.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide the numerator and the denominator by their greatest common divisor (GCD).

Front

What is the greatest common divisor (GCD)?

Back

The greatest common divisor (GCD) is the largest positive integer that divides each of the integers without leaving a remainder.

Front

What is the sum of 2/7 and 3/7?

Back

The sum of 2/7 and 3/7 is 5/7.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

Can you add fractions with different denominators directly?

Back

No, you cannot add fractions with different denominators directly. You must first find a common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions.