Rational Expressions Like Denominators

 $\frac{u-v}{8v}+\frac{6u-3v}{8v}$  

•  $\frac{7u-4v}{16v}$  

•  $\frac{7u-4v}{8v}$  

•  $\frac{7u+2v}{8v}$  

•  $\frac{7u+2v}{16v}$  

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CCSS.HSA.APR.D.7

Subtract  $\frac{5}{x}-\frac{4}{x}$  

•  $\frac{9}{x}$  

•  $\frac{1}{x}$  

•  $\frac{1}{x^2}$  

•  $\frac{9}{x^2}$  

Tags

CCSS.HSA.APR.D.7

Simplify the expression

• 6x / 20xy
• 3 / 10y
• (6x+1) / (20xy)
• 3 / 20xy

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CCSS.HSA.APR.D.7

Simplify the expression

• (2a + 4b) / 12b²
• (2a - 4b) / 12b² 
• (a - b) / 6b²
• (a + 2b) / 6b² 

Tags

CCSS.HSA.APR.D.7

Simplify the expression.

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• 

Tags

CCSS.HSA.APR.D.7

Simplify the expression.

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• 

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CCSS.HSA.APR.D.7

Simplify $\frac{-5x}{x-9}-\frac{-8}{x-9}$  

•  $\frac{-5x+8}{x-9}$  

•  $\frac{-5x-8}{x-9}$  

•  $\frac{x-9}{-5x}$  

•  $\frac{x+8}{x}$  

Tags

CCSS.HSA.APR.D.7

Simplify $\frac{x}{x^2-49}-\frac{7}{x^2-49}$  

•  $\frac{7}{x+7}$  

•  $\frac{1}{x-7}$  

•  $\frac{x+7}{x}$  

•  $\frac{1}{x+7}$  

Tags

CCSS.HSA.APR.D.7

Simplify $\frac{3r+1}{r+5}+\frac{r+9}{r+5}$  

•  $\frac{2r+10}{r+5}$  

•  $\frac{2\left(2r+5\right)}{r+5}$  

•  $2$  

•  $\frac{4r+10}{r+5}$  

Tags

CCSS.HSA.APR.D.7

To add or subtract rational expressions we must have a _____________>

• greatest common factor
• common denominator
• calculator
• proportion

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CCSS.HSA.APR.D.7