Addition and Subtraction of Rational Expressions

 $\frac{15}{4x}+\frac{5}{4x}$  

•  $\frac{20x}{4}$  

•  $\frac{4}{x}$  

•  $\frac{5}{x}$  

•  $\frac{10}{4x}$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

 $\frac{x}{x+2}+\frac{4x}{x-2}$  

•  $\frac{x\left(5x+6\right)}{\left(x+2\right)\left(x-2\right)}$  

•  $\frac{\left(5x+6\right)}{\left(x+2\right)\left(x-2\right)}$  

•  $\frac{\left(5x^2+6\right)}{\left(x+2\right)\left(x-2\right)}$  

•  $\frac{4x^2+10x}{\left(x+2\right)\left(x-2\right)}$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

 $\frac{1}{3x}-\frac{2}{5}$  

•  $\frac{6x+5}{5\left(3x\right)}$  

•  $\frac{-6x+5}{\left(3x\right)}$  

•  $\frac{-x+5}{5\left(3x\right)}$  

•  $\frac{-6x+5}{5\left(3x\right)}$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

 $\frac{3}{x-3}-\frac{12}{x^2+5x-24}$  

•  $\frac{3\left(x-8\right)}{\left(x+8\right)\left(x-3\right)}$  

•  $\frac{3\left(x-4\right)}{\left(x+8\right)\left(x-3\right)}$  

•  $\frac{\left(3x-8\right)}{\left(x+8\right)\left(x-3\right)}$  

•  $\frac{3\left(x-8\right)}{\left(x^2+5x-24\right)\left(x-3\right)}$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

Allison and Wesley are adding 1/7 and 3/7. Who is correct?

• Wesley

• Allison

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.3

Find the least common denominator of the expression

• 18
• 6x
• 3xy
• 6xy

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

 $\frac{3x^2+2}{x^2-5}+\frac{4}{x^2-5}$  

•  $\frac{3\left(x^2+2\right)}{x^2-5}$  

•  $\frac{x^2+2}{x^2-5}$  

•  $\frac{3\left(x+2\right)}{x^2-5}$  

•  $\frac{x+2}{x^2-5}$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

 $\frac{3x}{x^2-25}-\frac{2}{x-5}$  

•  $\frac{3x-10}{\left(x+5\right)\left(x-5\right)}$  

•  $\frac{3x-2}{\left(x+5\right)\left(x-5\right)}$  

•  $\frac{x-10}{\left(x+5\right)\left(x-5\right)}$  

•  $\frac{3x^2-2x+10}{\left(x+5\right)\left(x-5\right)}$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.A.2

 $\frac{x+1}{x^2+6x+8}+\frac{3x}{x+2}$  

•  $\frac{x^2+12x+1}{\left(x+4\right)\left(x+2\right)}$  

•  $\frac{3x^2+12x+1}{\left(x+4\right)\left(x+2\right)}$  

•  $\frac{3x^2+12x+1}{\left(x+4\right)\left(x+2\right)}$  

•  $\frac{3x^2+13x+1}{\left(x+4\right)\left(x+2\right)}$  

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

 $\frac{2x}{x+2}-\frac{3}{x-1}$  

•  $\frac{x^2-6x-5}{\left(x-1\right)\left(x+2\right)}$  

•  $\frac{2x^2-5x-6}{\left(x-1\right)\left(x+2\right)}$  

•  $\frac{2x^2-6x-5}{\left(x-1\right)\left(x+2\right)}$  

•  $\frac{2x^2-6x-10}{\left(x-1\right)\left(x+2\right)}$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7