Finding the LCD & Simplifying Complex Fractions

Front

What does LCD stand for in mathematics?

Back

LCD stands for Least Common Denominator.

Front

How do you find the LCD of two fractions?

Back

To find the LCD of two fractions, identify the denominators, find the least common multiple (LCM) of those denominators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the purpose of finding the LCD when adding or subtracting fractions?

Back

The purpose of finding the LCD is to have a common denominator so that fractions can be easily added or subtracted.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is a complex fraction?

Back

A complex fraction is a fraction where the numerator, the denominator, or both contain fractions.

Front

How do you simplify a complex fraction?

Back

To simplify a complex fraction, multiply the numerator and the denominator by the LCD of the fractions in the numerator and denominator.

Front

What is the first step in simplifying a complex fraction?

Back

The first step is to identify the fractions within the numerator and denominator.

Front

Can the LCD be a negative number?

Back

No, the LCD is always a positive number.

Tags

CCSS.7.EE.B.3

Front

What is an example of finding the LCD for the fractions 1/4 and 1/6?

Back

The LCD of 1/4 and 1/6 is 12.

Front

What is the relationship between the LCM and the LCD?

Back

The LCD is the LCM of the denominators of the fractions being considered.

Front

Why is it important to simplify fractions?

Back

Simplifying fractions makes them easier to work with and understand.