Alfi Blog

Alfi Blog

Alfi Blog


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Fraction Division and Compound Fractions

Fraction Division and Compound Fractions

Division of fractions with variables can become multiplication of fractions by inverting the second fraction. Because compound fractions are really only fraction division problems, rewrite the compound fraction as fraction division then as fraction multiplication.

Operations on Fractions with Variables - 1

At times, especially in calculus, you might need to write a fraction as a product of two fractions or of one fraction and a whole number or of one fraction and a variable. The steps you will follow are the same as in multiplying fractions-only in reverse.

Operations on Fractions with Variables

Operations on Fractions with Variables

Multiplication of fractions with variables is done in exactly the same way as multiplication of fractions without variables-multiply the numerators and multiply the denominators.

Introduction to Variables

Introduction to Variables

Introduction to Variables

A variable is a symbol for a number whose value is unknown. A variable might represent quantities at different times. For example if you are paid by the hour for your job and you earn $10 per hour, letting x represent the number of hours worked would allow you to write your earnings as ‘‘10x.’’ The value of your earnings varies depending on the number of hours worked. If an equation has one variable, we can use algebra to determine what value the variable is representing.

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