Adding and Subtracting Unlike Fractions

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to add unlike fractions?

Back

Adding unlike fractions involves finding a common denominator before combining the numerators.

Tags

CCSS.7.NS.A.1C

Front

How do you find a common denominator for 3/8 and 2/4?

Back

The least common multiple (LCM) of the denominators (8 and 4) is 8. Convert 2/4 to 4/8.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the sum of 3/8 and 2/4?

Back

3/8 + 2/4 = 3/8 + 4/8 = 7/8.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What does it mean to simplify a fraction?

Back

Simplifying a fraction means reducing it to its lowest terms by dividing the numerator and denominator by their greatest common divisor (GCD).

Front

Back

Front

What is the greatest common divisor (GCD)?

Back

The GCD is the largest number that divides two or more numbers without leaving a remainder.

Front

What is the difference between 2/5 and 1/4?

Back

Tags

CCSS.7.NS.A.1C

Front

What is a mixed number?

Back

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

Tags

CCSS.3.NF.A.3C

Front

Convert 1 and 5/12 to an improper fraction.

Back