Adding/Subtracting Fractions

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 add fractions?

Back

Adding fractions means combining the parts represented by the fractions. If the denominators are the same, add the numerators and keep the denominator. If they are different, find a common denominator first.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What does it mean to subtract fractions?

Back

Subtracting fractions means taking away one part from another. If the denominators are the same, subtract the numerators and keep the denominator. If they are different, find a common denominator first.

Tags

CCSS.4.NF.B.3A

Front

What is a common denominator?

Back

A common denominator is a number that is a multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

How do you find a common denominator for 1/2 and 1/3?

Back

The common denominator for 1/2 and 1/3 is 6, as it is the least common multiple of 2 and 3.

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 are different.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

How do you convert 1/2 to an equivalent fraction with a denominator of 20?

Back

Multiply both the numerator and denominator of 1/2 by 10 to get 10/20.

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

What is the result of adding 1/4 and 1/4?

Back

1/4 + 1/4 = 2/4, which simplifies to 1/2.

Tags

CCSS.4.NF.B.3A

Front

What is the result of subtracting 3/8 from 5/8?

Back

5/8 - 3/8 = 2/8, which simplifies to 1/4.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you simplify the fraction 4/12?

Back

Divide both the numerator and denominator by their greatest common divisor, which is 4. So, 4/12 simplifies to 1/3.