What is the importance of having common denominators when subtracting fractions?
Subtracting two rational expressions with unlike denominators
Interactive Video
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Mathematics
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11th Grade - University
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Hard
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The video tutorial explains how to handle rational expressions by finding common denominators. It begins with an introduction to rational expressions and the necessity of common denominators for subtraction. The tutorial then covers simplifying and factoring expressions, followed by finding the least common multiple (LCM) for denominators. It demonstrates combining fractions using the LCM and concludes with the final simplification of the expression.
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5 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
How can you simplify the expression 5X + 10?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the least common multiple (LCM) of the denominators in the given fractions?
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Explain the process of combining the fractions with the LCM.
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the final simplified result of the expression after combining the fractions?
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