Two rational expressions can be multiplied or divided just
like two rational numbers.
You can use two methods to multiply rational numbers.
· Method 1 Multiply
numerators and multiply denominators. Then divide each numerator and
denominator by the greatest common factor.
· Method 2 Divide
numerators and denominators by any common factors. Then multiply numerators and
denominators.
Both methods have the same result.
You can use the same methods to multiply rational
expressions. Multiply 
.
Find each product.
To divide a rational number by any nonzero number, multiply
by its reciprocal. You can use the same method to multiply rational
expressions.
Sports
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5. The Indianapolis 500 is a 500-mile
automobile race. Each lap is 2 ½ miles long. How many laps does a driver complete
to race the entire 500 miles?
Alternative Solutions:
A driver
completes 200 laps.
Example
Find each quotient.
Sometimes it is necessary to factor –1
from one of the terms.
Example
Sumber
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