
Mastering Addition and Subtraction of Rational Expressions

Interactive Video
•
Mathematics
•
6th - 10th Grade
•
Hard
+1
Standards-aligned

Liam Anderson
FREE Resource
Standards-aligned
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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