Presentation is loading. Please wait.

Presentation is loading. Please wait.

Adding and subtracting rational expressions: To add or subtract rational expressions use the addition property: Taken from

Similar presentations


Presentation on theme: "Adding and subtracting rational expressions: To add or subtract rational expressions use the addition property: Taken from"— Presentation transcript:

1 Adding and subtracting rational expressions: To add or subtract rational expressions use the addition property: Taken from

2 If the expressions have the same (common) denominator, add or subtract the numerators, keep the same denominator, and simplify the result. Taken from

3 Do the operations and simplify the result: Taken from

4 =1 Taken from

5

6 =9 Taken from

7

8 To add or subtract fractions with different denominators find the least common denominator (LCD), change each fraction so that it has that denominator then add or subtract Simply stated, the LCD is the least number (expression) that all denominators will divide into evenly. Taken from

9 To find the LCD factor each denominator write the different factors give each factor the highest power to which it occurs multiply the results Taken from

10 Find the LCD for y²-16 and y²-8y+16 Factor each write each factor give each highest exponent multiply results (y+4)(y-4) and (y-4) ² (y+4)(y-4) (y+4)(y-4) ² Taken from

11 Add : LCD = change each fraction to LCD add/subtract simplify Taken from

12 Add : LCD = change each fraction to LCD add/subtract simplify Taken from

13 Add : LCD = change each fraction to LCD add/subtract simplify (Top isn’t factorable) Taken from

14 If the denominators have opposite factors, then change one of them using the 3 signs of a fraction rule. Taken from

15

16 1) 2) 3) 4) Taken from

17

18 (x+3) (x-2) (x+3) (x-5) (x-5) (x-2) Taken from

19 (y – 2) (y+2) -(y-2)(y+2)

20 (x-1) (x-1)(x+1) (x+1)(x+1) LCM: (x-1)(x+1)(x+1) Taken from

21 Simplify the top and bottom: Use “tortilla method”


Download ppt "Adding and subtracting rational expressions: To add or subtract rational expressions use the addition property: Taken from"

Similar presentations


Ads by Google