# Simplify (4/(x+3))/(1/x+3)

Multiply the numerator by the reciprocal of the denominator.
Simplify the denominator.
To write as a fraction with a common denominator, multiply by .
Combine the numerators over the common denominator.
Multiply the numerator by the reciprocal of the denominator.
Multiply by .
Multiply and .
Simplify (4/(x+3))/(1/x+3)