Try It 7.51: Simplifying by Writing it as Division
To simplify the complex rational expression by writing it as division, perform the following steps:
Step 1. Simplify the numerator and denominator. The common denominator for the separate expressions in the numerator and denominator is . Numerator: Multiply by and by to add them: . Denominator: Multiply by and by to subtract them: . The complex fraction becomes .
Step 2. Rewrite as division. Translate the main fraction bar into division: .
Step 3. Multiply by the reciprocal and simplify. Change the division operator to multiplication by using the reciprocal: . Divide out the common polynomial factor of from the numerator and denominator. The final simplified expression is .
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Ch.7 Rational Expressions and Functions - Intermediate Algebra @ OpenStax
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Try It 7.51: Simplifying by Writing it as Division
Try It 7.52: Simplifying by Writing it as Division
A laboratory technician is verifying a formula for a system's efficiency that involves the complex rational expression . To simplify this expression using the 'Writing it as Division' method, what is the correct sequence of procedural steps?
A supply chain analyst is working with a logistics model that produces the complex rational expression to represent relative travel times. To simplify this using the 'Writing it as Division' procedure, they must first simplify the main numerator and main denominator separately. What is the resulting expression after this specific first step is completed?
A technical draftsperson is verifying a scaling ratio for a construction blueprint. The ratio is represented by the complex rational expression . Match each description of the simplification process with its corresponding algebraic form as it appears when using the 'Writing it as Division' method.
An HVAC technician is analyzing the efficiency of a dual-duct system using the complex rational expression . After simplifying the numerator and denominator to single fractions and rewriting the expression as the division problem , the technician must then multiply the first fraction by the ____ of the second fraction to complete the simplification.
A maintenance technician is using the expression to calculate the wear ratio between two different machine bearings. True or False: When simplifying this expression using the 'Writing it as Division' method, the simplified form of the main numerator, , serves as the divisor in the resulting division problem.
Learn After
As a technical training coordinator, you are drafting a reference guide on algebraic manipulations used in formula optimization. You need to document the exact procedure for simplifying the complex fraction by using the division method. Arrange the following steps in the correct order for your reference guide.
A project manager is simplifying a performance ratio formula involving two variables, and :
To simplify this expression using the method of 'writing it as division,' the numerator and denominator are first simplified into single fractions. According to this procedure, which of the following shows the correct way to rewrite the expression as a division problem after that first step is completed?
As a technical documentation specialist, you are updating a reference manual for an engineering department. You need to map the algebraic stages of simplifying the complex ratio using the division method to their correct simplified forms. Match each stage of the process with its corresponding result.
In a corporate efficiency report, a developer simplifies the expression to calculate a comparative throughput ratio for two systems, where and represent different machine speeds. True or False: When simplified using the method of writing the expression as division, the final resulting simplified expression for this ratio is .
Efficiency Formula Simplification