What are the two methods to solving rational expressions with unlike denominators?

d). multiplying across the denominators

When adding and subtracting rational expressions, my first step should be to:

Determine a Least Common Denominator.

Combine like terms in the numerators.

Factor all of the numerators and all of the denominators.

Change the operator to multiplication and reciprocate the second fraction.

Adding/Subtracting Rational Expressions with Unlike Denominators

Quiz

•

Mathematics

•

11th Grade

•

Practice Problem

•

Easy

•

CCSS

HSA.APR.D.7, HSA.APR.D.6, 7.EE.A.1

Standards-aligned

Anthony Clark

Used 1+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the first step in adding or subtracting expressions with unlike bases?

Make the denominators the same by finding the LCD

Combine like terms

Simplify each expression separately

Multiply the numerators

Tags

CCSS.HSA.APR.D.7

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Tags

CCSS.HSA.APR.D.7

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When adding or subtracting rational expressions, what must you first make sure is done.

make sure all denominators are common denominators a

make sure all numerators are common numeratorsb).

make sure all denominators are different

make sure all numerators are different d

Tags

CCSS.HSA.APR.D.7

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

5/6x + 7/18x

a). 22/18x

b). 11/9x

Tags

CCSS.7.EE.A.1

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A

B

C

D

Tags

CCSS.HSA.APR.D.7

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A.

B.

C.

D.

Tags

CCSS.HSA.APR.D.7

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Perform the operation

A

B

C

D

Tags

CCSS.HSA.APR.D.7

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