How To Divide Fractions With Variables

This pre algebra youtube video tutorial explains the process of multiplying algebraic fractions with exponents and variables. Then using the greatest common factor you divide the numbers and reduce. When a letter like a b x or y pops up in a mathematical expression it s called a variable but really it s a placeholder that represents a number of unknown value.

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Each variable is considered separately.

How to divide fractions with variables. When dividing variables you write the problem as a fraction. We present examples on how to simplify complex fractions including variables along with their detailed solutions. Introduction to fractions dividing fractions by whole numbers multiplying fractions simplifying fractions equivalent fractions adding fractions subtracting fractions. The number coefficients are reduced the same as in simple fractions.

Coefficients are numbers attached to variables by multiplication. For example in the term. Add and subtract fractions with variables. That fact comes in handy if the variable pops up in a fraction where you ll need tools like multiplication division and.

Fractions multiplying and dividing numerical and variable examples. Dividing variables in an algebra problem is fairly straightforward. You can perform all the same mathematical operations on a variable that you d perform on a known number. Simplifying exponents with fractions variables negative exponents multiplication division.

Dividing by 5 2 is the same as multiplying by 2 5 so instead of dividing by a fraction it is easier to turn that fraction upside down then do a multiply. Multiply the top numbers of both fractions together to get the numerator top number of your new fraction. You use the rules of exponents to divide. To divide fractions by fractions start by replacing the division sign with a multiplication sign.

A thorough review of fractions equivalent fractions and how to add multiply and divide fractions is needed in order to understand the examples below. Variables can be part of the actual fraction such as x 3 or fractions can be coefficients for variables. It contains plenty of examples and practice questions. Then flip the second fraction over so the bottom number of the second fraction is now on the top.