👉 Learn how to verify trigonometric identities involving the addition and subtraction of terms. To do this it is usually ...

In this video I show you how to simplify trigonometric identities by adding fractions. I begin this lesson by reminding you ...

This lesson uses models to convert mixed numbers to improper fractions. This lesson uses models to convert mixed numbers to improper fractions.

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Over the past year, since I took over the common-core math beat, I’ve been thinking a lot about fractions. As I wrote in November, the Common Core State Standards for mathematics emphasize fractions ...