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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Adding/Subtracting Fractions- Unlike Denominators - Problem 3

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 only combine fractions if they have the exact same denominators. If they don't, we need to re-write each fraction in an equivalent form so that they will have the same denominators. From there, add or subtract the numerators only and leave the denominators unchanged. This process stays the same when there are variables in the problems, as well.

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