Adding and Subtracting Fractions

What is the least common multiple (LCM) also known as?

• Lowest common factor

• Greatest common factor

• Highest common multiple

• Least common denominator

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

• Four

• Twelve

• Eight

• Six

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

• Divide the fractions

• Multiply the fractions

• Find equivalent fractions

• Add the fractions

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

• Ten

• Twenty

• Fifteen

• Five

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

• Fourteen-twentieths

• Twelve-twentieths

• Ten-twentieths

• Sixteen-twentieths

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

• Three

• Six

• Nine

• Twelve

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

• Two-sixths

• Three-sixths

• Four-sixths

• One-sixth

What is the first step in adding or subtracting fractions?

• Divide the fractions

• Multiply the fractions

• Find the least common multiple

• Simplify the fractions

What should you do after finding equivalent fractions in addition or subtraction?

• Find a new LCM

• Divide the fractions

• Add or subtract the fractions

• Multiply the fractions