Adding and Subtracting Fractions

The video tutorial explains how to find the least common multiple (LCM) and its role in adding and subtracting fractions. It provides step-by-step examples of using LCM to perform operations on fractions, emphasizing the importance of finding equivalent fractions and simplifying results.

What is the Least Common Multiple (LCM) also known as?

• Greatest Common Denominator

• Least Common Denominator

• Highest Common Denominator

• Greatest Common Factor

In the example of three-sixths minus one-fourth, what is the LCM of the denominators?

• Six

• Eight

• Twelve

• Four

After finding the LCM, what is the next step in subtracting fractions?

• Find equivalent fractions

• Add the fractions

• Divide the fractions

• Multiply the fractions

In the example of two-fourths plus one-fifth, what is the LCM of the denominators?

• Five

• Twenty

• Four

• Ten

What is the result of adding two-fourths and one-fifth after finding equivalent fractions?

• Twelve-twentieths

• Sixteen-twentieths

• Fourteen-twentieths

• Ten-twentieths

In the example of five-sixths minus one-third, what is the LCM of the denominators?

• Twelve

• Six

• Three

• Nine

What is the result of subtracting five-sixths and one-third after finding equivalent fractions?

• Three-sixths

• One-sixth

• Two-sixths

• Four-sixths

What is the first step in adding or subtracting fractions?

• Divide the fractions

• Find the Least Common Multiple

• Simplify the fractions

• Multiply the fractions

What should you do after finding equivalent fractions in the process of adding or subtracting?

• Simplify the result

• Find a new LCM

• Multiply the fractions

• Divide the fractions