Simplifying Expressions with Rational Numbers

Unlike Bases Fractions

​

Multiple Choice

Simplify the expression

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

Multiple Choice

Simplify the expression

• (2a + 4b) / 12b²

• (2a - 4b) / 12b²

• (a - b) / 6b²

• (a + 2b) / 6b²

Multiple Choice

Simplify the expression

• n / 2m 
• n / 3m 
• (m² + 4n²) / 12m
• n / 4m 

Multiple Choice

Find the least common denominator of the expression

• 18
• 6x
• 3xy
• 6xy

Multiple Choice

Multiple Choice

Multiple Choice

• A
• B
• C
• D

Multiple Choice

Simplify the expression

• (-17x - 12y) / 15x

• (23x - 4y) / 15x

• (-17x - 4y) / 15x

• (-3x - 4y) / 8x

Multiple Choice

• A
• B
• C
• D

Multiple Choice

• A
• B
• C
• D

Multiple Choice

Simplify the expression

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

Multiple Choice

Add
$$\frac{7x}{x^2-5x}+\frac{x^2}{x-5}$$  

• $$\frac{x^3+7x}{x\left(x-5\right)}$$  

• $$\frac{x^2+7}{x-5}$$  

• $$\frac{x^4-5x^3+7x^2-35x}{\left(x^2-5x\right)\left(x-5\right)}$$  

• $$\frac{x^4-5x^3+7x^2-35x}{\left(x^2-5x\right)\left(x-5\right)}$$  

Multiple Choice

Simplify the expression

• (19k² -12k - 12) / 4k(5k-4)
• (19k² - 24k) / 4k(5k-4)
• (19k) /  4(5k-4)
• (19k - 24) / 4(5k-4)

Multiple Choice

Multiple Choice

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

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

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

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

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

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• A
• B
• C
• D

Multiple Choice

• A

• B

• C

• D

Multiple Choice

Multiple Choice

Simplify the expression

• (12n² + 28n + 4) / (2n-5)(n+2)
• (12n² - 28n + 4) / (2n-5)(n+2)
• (8n) / (3n + 3)
• (12n² + 2n -3) / (2n-5)(n+2)

Multiple Choice

Multiple Choice

• A

• B

• C

• D

Multiple Choice

Multiple Choice

• A
• B
• C
• D