Adding and subtracting rational numbers

Simplify the expression

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

Simplify the expression

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

Simplify the expression

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

Simplify the expression

• (-17x - 12y) / 15x

• (23x - 4y) / 15x

• (-17x - 4y) / 15x

• (-3x - 4y) / 8x

Simplify the expression

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

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)

• A
• B
• C
• D

• A

• B

• C

• D

• 
• 
• 
• 

• 
• 
• 
•