Why is it important to have the same denominator when adding or subtracting fractions?

Understanding Fractions and Their Operations

Interactive Video
•
Mathematics
•
6th - 8th Grade
•
Hard

Thomas White
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To ensure the numerators are equal
To convert fractions into decimals
To accurately add or subtract the fractions
To make the fractions easier to multiply
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of adding 1/8 and 2/8?
2/8
1/8
3/8
3/16
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find a common denominator for 1/3 and 1/4?
Add the denominators
Find the least common multiple, which is 12
Multiply both by 4
Multiply both by 3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the golden rule when dealing with fractions that have different denominators?
Add the numerators directly
Multiply the numerators by each other
Divide the denominators by each other
Multiply or divide both the numerator and denominator by the same number
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the simplified form of 5x/10 + x/10?
6x/10
5x/2
x/2
5x/10
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you simplify the fraction 22a/33 - 12a/33?
12a/33
22a/33
34a/33
10a/33
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the improper fraction 16/12 simplified to?
2/3
16/12
1 1/3
4/3
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