Lesson 2

Question 1

Fill in this statement: You can only compare and combine two fractions that are ___ ______ ______.

Answer 1

The same kind. (have the same denominator)

Question 2

Does multiplying or dividing by one change the value of a fraction?

Answer 2

no

Question 3

What does the denominator and numerator of a fraction tell you?

Answer 3

the denominator tells what kind and the numerator tells how many

Question 4

Can letters and numbers be added?

Answer 4

no. only multiplied and divided

Question 5

What is a way you can check in algebra to see if you are using x right?

Answer 5

substitute x for a number and see if it works out.

Question 6

can letters and numbers be separated in the the numerator and denominator?

Answer 6

only in the numerator. The numbers and letters in the denominator are one value.

Question 7

Does adding one to a fraction change the value of a fraction?

Answer 7

yes

Question 8

What does it mean to simplify a fraction?

Answer 8

get rid of the denominator

Question 9

How do you add rational expressions with numbers and letters in the denominator that are not the same?

Answer 9

you multiply both fractions by the opposite denominator over itself