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Wednesday 29th of June
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 Depdendent Variable

 Number of equations to solve: 23456789
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 Dependent Variable

 Number of inequalities to solve: 23456789
 Ineq. #1:
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 Solve for:

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# Adding and Subtracting Fractions with Like Denominators

Example 1

Write as a sum over a common denominator.

Simplify the fraction.

Example 2

Subtracting Fractions with Like Denominators

Write as a difference over a common denominator.

Subtract the numerators.

Simplify the fraction.

Use the same rule when adding or subtracting three or more fractions with like denominators.

Example 3

Real-Life Application

FOREST FIRES

A forest fire advances mile during the first hour, mile during the second hour, and mile during the third hour. How far does the forest fire advance in the first three hours?

Solution