Which of the Following Operations Requires Finding a Common Denominator

question 6

Multiple Choice

Which of the following operations requires finding a common denominator before completing the equation? Select all that apply.

• A) Adding fractions
• B) Subtracting fractions
• C) Multiplying fractions
• D) Dividing fractions
• E) Reducing reactions

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Definitions:

Acid Deposition

A broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid, falling to the ground.

Highest Levels

The most extreme or advanced point within a specific context or system.

Photochemical Smog

Air pollution created by the reaction of sunlight with pollutants such as nitrogen oxides and volatile organic compounds in the Earth's atmosphere.

Primary Pollutants

Pollutants that are emitted directly from identifiable sources and enter the air or water in a harmful form.