{"page":"\n\n
\n
\n
\n
\n
\n\nVideo\n
\n

\nHow do we add and subtract rational expressions\n

\n
\n
\nGet Free Access for 10 Days!\n
\n
\n
\n
\n
\n
×
\n\n\n
\n\nPublisher:\n\nBrian McLogan\n\n\n
\n
\nLearn how to add/subtract rational expressions with monomials in the denominator. When adding or subtracting two or more rational expressions with common denominators, we add or subtract only the numerator while we keep the denominator...\nLearn how to add/subtract rational expressions with monomials in the denominator. 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 while retaining the common denominator. Timestamps: 0:00 Intro 1:23 Example #1 2:32 Example #2 Corrections: 3:45 It was supposed to be 10 not 2, and should have been 5x+10 instead of 5x+2.\n
\n
\n\n
\n
\n
\n
\n

Resource Details

\n
\n
\n
\n
Curator Rating
\n
\n
\n
\n
\n
\n
Educator Rating
Not yet Rated
\n
\n
\n
\n
\n
Media Length
\n
4:42
\n
\n
\n
\n
\n
Grade
12th - Higher Ed
\n
\n
\n
\n
\n
Subjects
Math
3 more...
\n
\n
\n
\n
\n
Media Type
Instructional Videos
\n
\n
\n
\n
\n
Source:
\n
\nBrian McLogan\n\n
\n
\n
\n
\n
\n
Date
\n
2013
\n
\n
\n
\n
\n\n
Language
English
\n
\n
\n
\n
\n
Audiences
For Teacher Use
2 more...
\n
\n
\n
\n
\n
Usage Permissions
Fine Print: Educational Use
\n
\n
\n
\n
\n
\n

Additional Materials

\n
\n\nSign in or Join Now
\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" href=\"/subscription/new\">Video Transcript\n
\n
\n\nSign in or Join Now
\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" href=\"/subscription/new\">Video Preview\n
\n
\n
\n

Concepts

\n
\n
rational expressions, addition, distributive property, fractions, terms, polynomials, denominators, numerators, power, subtraction, simplifying
\n
\n\n\n
\n
\n
\n
\n

Additional Tags

\n
\n
math, mathematics, help, learn, how to maths, learning, adding and subtracting rational expressions, steps in doing math operations for rational expressions with same denominator, same denominator, basic examples, fractions with variables, (2y/3x^2)+((5+y^2)/3x^2), how to add and subtract rational expressions, different denominators, how to simplify fractions, free math videos, brian mclogan, add and subtract rational expressions, how, variable factor, final answer, common denominator, combining, applying, subtracting, denominator, adding, alright, show, subtract, equal, occasion, case, multiply, numerator, kind, exact, thing, times, squared, combine
\n
\n\n\n
\n
\n
\n
\n

Classroom Considerations

\n
Best For: Explaining a topic
Video is ad-free
\n
\n
\n

Educator Ratings

\n
\n
\n
\n
\n
\n\nShow resource details\n
\n
\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: How do we add and subtract rational expressions\" href=\"/subscription/new\">\"How\n\n
\n
\n
\n\n\n\n"}