Adding/subtracting rational expressions 5/8

Find the LCD of each pair of expressions.

• 18

• 54

• 15

• 3

Find the least common denominator of the expression

• 18
• 6x
• 3xy
• 6xy

Tags

CCSS.HSA.APR.D.7

Find the LCD of each pair of expressions.

• $ab^2c$

• $ab$

• $b^2c$

• $ab^3c$

Simplify the expression:  $\frac{12}{5y^2}-\frac{2}{5yz}$  

•  $\frac{10}{5y^2z}$  

•  $\frac{12z-2y}{5y^2z}$  

•  $\frac{25yz-10y^2}{25y^3z}$  

•  $\frac{12z-2y}{yz}$  

Tags

CCSS.HSA.APR.D.7

Simplify:   $\frac{3}{8p}+\frac{5}{4p}$  

•  $\frac{13}{12p}$  

•  $\frac{12}{8p}$  

•  $\frac{8}{12p}$  

•  $\frac{13}{8p}$  

Simplify the expression

• (5x + 4y) / 9y
• (6y + 3x) / 3y
• (2y + x) / y
• (6y + 3x) / 9y 

Tags

CCSS.HSA.APR.D.7

Simplify the expression

• (4 - 2ab² + 3b³) / 4b²
• (4a - 2a²b² + 3ab³) / 4ab²
• (4 - 2ab² - 3b³) / 4b²
• (4a - 2a²b² - 3ab³) / 4ab²

Tags

CCSS.HSA.APR.D.6

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 $\frac{2x}{x^2-36}+\frac{x+4}{x+6}$  

•  $\frac{x^2-24}{\left(x+6\right)\left(x-6\right)}\ ,\ x\ne\pm6$  

•  $\frac{x^3+6x^2-24x}{\left(x^2-36\right)\left(x+6\right)}\ x\ne-6,\ 36$  

•  $\frac{x^2+2x-24}{\left(x+6\right)\left(x-6\right)}\ ,\ x\ne\pm6$  

•  $\frac{x^2+12x+24}{\left(x+6\right)\left(x-6\right)}\ ,\ x\ne\pm6$  

Tags

CCSS.HSA.APR.D.7

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• A.

• B.

• C.

• D.

Tags

CCSS.HSA.APR.D.7

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Tags

CCSS.7.NS.A.1C