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Mastering Addition and Subtraction of Rational Expressions

Mastering Addition and Subtraction of Rational Expressions

Assessment

Interactive Video

Mathematics

6th - 10th Grade

Practice Problem

Hard

CCSS
HSA.APR.D.7, 5.NF.A.1, HSA.APR.D.6

+1

Standards-aligned

Created by

Liam Anderson

FREE Resource

Standards-aligned

CCSS.HSA.APR.D.7
,
CCSS.5.NF.A.1
,
CCSS.HSA.APR.D.6
CCSS.5.NF.A.2
,

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary rule for adding and subtracting fractions?

Fractions can be combined in any form.

Fractions must have a common denominator.

Fractions must have different denominators.

Fractions must have the same numerator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you change denominators to make them common?

By multiplying the fractions by a form of one.

By adding the same number to both denominators.

By dividing the denominators.

By subtracting the denominators.

Tags

CCSS.HSA.APR.D.7

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is necessary to add or subtract fractions with variables?

Different denominators

Identical numerators

Common denominators

Common variables

Tags

CCSS.HSA.APR.D.7

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of combining 4x/12x and 8x/12x?

12x/24x

12x^2/144x^2

12x/12x

14x-11/12x

Tags

CCSS.HSA.APR.D.6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When simplifying a fraction, what is the first step?

Subtract the numerator from the denominator.

Add the numerator and denominator.

Factor the numerator and denominator.

Multiply the numerator and denominator.

Tags

CCSS.HSA.APR.D.7

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is crucial when subtracting rational expressions?

Ignoring the common denominator.

Distributing the subtraction across the numerator.

Changing the numerator only.

Multiplying the denominators.

Tags

CCSS.HSA.APR.D.7

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you simplify the expression 2x/4x^2 - 2/4x^2?

4x/4x^2

2x+2/4x^2

Cannot be simplified

2x-2/4x^2

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