Daily Scribe

11/13/10 Brett Higgins


Today in class we worked on how to write algebraic fractions in simplest form. We started off class by correcting the homework from the night before. We then took notes on how to write a algebraic fraction in simplest form.
The first thing you do is write out the prime factorization of the expression. then you divide the numerator by the denominator by the common factors.


example: 9x /3xy would be written as 3*3*x /3*x*y


The next step would be to cross out the same numbers or variables and make them 1, they would be made into a 1 because anything divided by itself is 1. You could cross out a 3 and a x and make the equation and make it 3 over and that would be your answer. If you do these steps and your answer is a larger answer like

3*4*3*x /7*5*h, you would multiply 3*4*3*x and 7*5*h
and get 36x/ 35h because 3*4*3*x=36x and 7*5*h=35h to simplify the problem even more
We did 3 example problems and they were...

1. b/abc = 1/ac

2. 2mn/6m = N/3

3. 24xxy/8xy = 3x/1

At the end of class we worked on a order of operations worksheet were we had to show our steps on how we got the answer.
example: 9-5/(8-3)*(-2)-6 = 5
9-1*(-2)-6
9-(-2)-6
9+2-6
11-6