Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

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Calculating Percents - Problem 2

Alissa Fong
Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

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We can solve percents using the ratio "is/of = percent/100" . In this case, we see problems where the percent number is unknown, like "5 is what percent of 20?" We fill in a variable on the top of the second fraction and then solve by cross multiplying.

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