Week 15 Pre Calc 11

In week 15 we started lesson 7.4 on adding and subtraction binomial and trinomial denominators. we also did 7.5 and 7.6.

I learned is lesson 7.4 that you can multiply each fraction by a common denominator.

To  get the fractions together you have to multiply each fraction by the other fractions denominator. once that is done it is easy to get a new equation that is better to work with.

When you have changed it you then multiply each fraction out and on there side of the equation.

We also learned the if there are only 2 fractions and there Is a equal sign between them you can cross multiply instead of changing the denominators.

 

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