
Understanding Denominators and Restrictions

Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Hard
+6
Standards-aligned

Jackson Turner
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in dealing with denominators in an expression?
Ignore them
Add them together
Factorize them
Multiply them by 2
Tags
CCSS.HSA.APR.C.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of factorizing a difference of squares like 4x^2 - 9?
(2x - 3)(2x + 3)
(x - 3)(x + 3)
(2x - 9)(2x + 9)
(4x - 9)(4x + 9)
Tags
CCSS.1.OA.B.3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can 5 + 3 and 3 + 5 be considered the same in terms of denominators?
Because they are both even numbers
Because they are both odd numbers
Because they are both prime numbers
Because of the commutative property of addition
Tags
CCSS.HSA.APR.D.7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the lowest common denominator for 2x - 3 and 2x + 3?
2x - 3
(2x - 3)(2x + 3)
None of the above
2x + 3
Tags
CCSS.3.NF.A.1
CCSS.3.NF.A.2B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you do if a fraction lacks a certain denominator?
Ignore the missing denominator
Subtract the missing denominator from the numerator
Multiply the fraction by the missing denominator
Add the missing denominator to the numerator
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of achieving a common denominator?
To simplify the process of addition or subtraction
To eliminate the denominators
To make the fractions look similar
To make the fractions more complex
Tags
CCSS.7.EE.A.1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common mistake students make when simplifying expressions?
Subtracting incorrectly
Ignoring the denominators
Adding too late
Multiplying too early
Tags
CCSS.7.EE.A.1
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