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\nCombining rational expressions\n

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\n\nPublisher:\n\nBrian McLogan\n\n\n
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\nLearn how to add/subtract rational expressions. When adding or subtracting two or more rational expressions with common denominators, we add or subtract only the numerator while we keep the denominator the same. We will then simplify our...\nLearn how to add/subtract rational expressions. When adding or subtracting two or more rational expressions with common denominators, we add or subtract only the numerator while we keep the denominator the same. We will then simplify our answer by reducing the fraction if necessary. When adding rational expressions with different denominators, we find the LCM of the different denominators (this is usually the product of the different expressions that makes up the denominators). We then multiply the denominators by an expression which will yield the LCM. You will also multiply the numerator by the same expression with which you multiplied the denominator. Notice that the expressions now have the same denominator. We can now add or subtract the numerators retaining the common denominator.\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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7:32
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Grade
12th - Higher Ed
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Subjects
Math
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Media Type
Instructional Videos
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Source:
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\nBrian McLogan\n\n
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Date
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2013
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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rational expressions, expressions, factoring, simplifying, distributive property, denominators, values, factors, terms, parentheses, cubes, like terms, common denominators
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Additional Tags

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multiplying, multiply, product, rational, expression, simplify, numerator, denominator, help me with math, ((x+2)/(x‐4)) + 2/x + (5x/(3x‐1)), how to add threee rational expressions, adding rational equations, common denominator, adding rational equations with different denominators, adding and subtracting rational equations practice, free math videos, brian mclogan, math, lcd, how, 5x times, times negative, equal, times, 4 times, kind, make, call, 1 alright, remember, alright, apply, leave, squared, positive, combine, restrictions
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Classroom Considerations

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Best For: Explaining a topic
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\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: Combining rational expressions\" href=\"/subscription/new\">\"Combining\n\n
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