Mixed Number to an Improper Fraction
In this challenge you will be converting a mixed number to an improper fraction.
Because improper fractions use fewer numbers, your code will need to be as short as possible.
4 1/2 9/2 12 2/4 50/4 0 0/2 0/2 11 23/44 507/44
You may assume the denominator of the input will never be 0. The input will always be in the format
x y/z where x,y,z are arbitrary nonnegative integers. You do not need to simplify the output.
This is code-golf so shortest code in bytes wins.