Learn math, science, English SAT & ACT from
highquaility study
videos by expert teachers
Thank you for watching the preview.
To unlock all 5,300 videos, start your free trial.
Simplifying Rational Functions with Factoring and GCFs  Problem 14
Alissa Fong
Alissa Fong
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
A complex fraction, also called a double fraction, is two or more fractions stacked inside each other. To make things even uglier, here we have a sum or difference of fractions embedded in a complex fraction. You could find common denominators a few times and multiply by reciprocals, but here we look at a shortcut for "clearing" the denominators: multiply top and bottom by the least common denominator of all fractions. This is mathematically valid because you're really just multiplying by a clever form of one, but the fractions will turn into integers.
Transcript Coming Soon!
Please enter your name.
Are you sure you want to delete this comment?
Alissa Fong
M.A. in Secondary Mathematics, Stanford University
B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
Sample Problems (15)
Need help with a problem?
Watch expert teachers solve similar problems.

Simplifying Rational Functions with Factoring and GCFs
Problem 1 6,161 viewsSimplify and find any excluded values.
4x³ 16x 
Simplifying Rational Functions with Factoring and GCFs
Problem 2 5,661 viewsSimplify and find any excluded values.
18x³ 6x + 12 
Simplifying Rational Functions with Factoring and GCFs
Problem 3 4,993 viewsSimplify and find any excluded values.
8m + 16 2m² + 5m + 2 
Simplifying Rational Functions with Factoring and GCFs
Problem 4 4,599 viewsSimplify and find any excluded values.
9 − 3x 3x² − 9 − 6x 
Simplifying Rational Functions with Factoring and GCFs
Problem 5 744 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 6 710 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 7 671 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 8 723 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 9 594 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 10 668 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 11 775 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 12 615 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 13 653 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 14 706 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 15 641 views
Comments (0)
Please Sign in or Sign up to add your comment.
·
Delete