Rational Expressions Quiz

Simplify: $\frac{120x^3y}{25xy^5}$  

•  $\frac{24x^2}{5y^4}$  

•  $\frac{24x^3y}{5xy^5}$  

•  $\frac{24x^4}{5y^5}$  

•  $\frac{24x^3y^4}{5}$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

Simplify:  $\frac{x^2+9x+20}{2x+8}$  

•  $\frac{\left(x+5\right)}{2}$  

•  $\frac{\left(x+4\right)\left(x+5\right)}{2x+8}$  

•  $\frac{\left(x-4\right)\left(x-5\right)}{2x+8}$  

•  $\frac{\left(x-5\right)}{2}$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.B.3

Simplify:  $\frac{x^2-x-12}{x^2-2x-8}$  

•  $\frac{x+3}{x+2}$  

•  $\frac{x-3}{x+2}$  

•  $\frac{\left(x-4\right)\left(x+3\right)}{\left(x+4\right)\left(x-2\right)}$  

•  $\frac{\left(x+4\right)\left(x-3\right)}{\left(x-4\right)\left(x+2\right)}$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.B.3

What is the least common denominator for  $\frac{3}{3xy}-\frac{2y}{6x}$  ?

•  $18$  

•  $6x$  

•  $3xy$  

•  $6xy$  

Simplify the expression.  $\frac{2}{3}+\frac{3x+4y}{3y}$  

•  $\frac{5x+4y}{9y}$  

•  $\frac{6y+3x}{3y}$  

•  $\frac{2y+x}{y}$  

•  $\frac{6y+3x}{9y}$  

Bob has factored the denominators and made sure there is a common denominator.  He must be...

• Adding or Subtracting Rational Expressions
• Multiplying Rational Expressions
• Dividing Rational Expressions

Tags

CCSS.HSA.APR.D.7

Julie has factored the numerators and denominators and multiplied by the reciprocal (keep it, flip it, multiply it).  She must be…

• Adding or Subtracting Rational Expressions
• Multiplying Rational Expressions
• Dividing Rational Expressions

Tags

CCSS.HSA.APR.D.7

 $Simplify:\ \ \frac{x^2+7x+12}{x^2+4x}$  

•  $\frac{x+3}{x+4}$  

•  $\frac{x-3}{x}$  

•  $\frac{x+3}{x}$  

•  $\frac{x+3}{x^2}$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.B.3

 $Simplify:\ \ \frac{8w^3y^{11}}{\left(4w^3y^5\right)^2}$  

•  $\frac{2y}{w^3}$  

•  $\frac{1y}{2w^3}$  

•  $\frac{y^4}{w^2}$  

•  $\frac{1y^{21}}{2w^9}$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Which is the next correct setup for simplifying  $\frac{7x}{x+1}+\frac{2}{x-3}$  

•  $\frac{7x}{x+1}\cdot\frac{2}{x-3}+\frac{2}{x-3}\cdot\frac{7x}{x+1}$  

•  $\frac{7x}{x+1}\cdot\frac{7x}{x+1}+\frac{2}{x-3}\cdot\frac{2}{x-3}$  

•  $\frac{7x}{x+1}\cdot\frac{x-3}{x-3}+\frac{2}{x-3}\cdot\frac{x+1}{x+1}$  

•  $\frac{7x}{x+1}\cdot\frac{x+1}{x+1}+\frac{2}{x-3}\cdot\frac{x-3}{x-3}$