Simplifying Fractions: Key Concepts and Examples

What is the first step in simplifying a fraction?

• Subtracting the numerator from the denominator

• Multiplying the numerator and denominator

• Adding the numerator and denominator

• Finding the greatest common factor

What is the greatest common factor (GCF) of 18 and 30?

• 2

• 3

• 6

• 9

What is 18/30 simplified to using the GCF?

• 1/2

• 6/10

• 9/15

• 3/5

If you divide 18 and 30 by 2 first, what fraction do you get?

• 3/5

• 9/15

• 6/10

• 1/2

After dividing 9/15 by 3, what is the simplified fraction?

• 3/5

• 2/3

• 6/10

• 1/2

What is another common factor of 18 and 30 besides 2?

• 3

• 7

• 4

• 5

What is the simplified form of 42/49?

• 3/4

• 7/6

• 6/7

• 1/1

What is a common factor of 42 and 49?

• 6

• 7

• 3

• 2

What is the greatest common factor of 42 and 49?

• 3

• 2

• 7

• 6

What should you do if the only common factor between the numerator and denominator is 1?

• Add the numerator and denominator

• Multiply both by 2

• Divide both by 2

• The fraction is already in simplest form