If the Same Number Is Added to Both the Numerator $\text { Toffee }$

If the same number is added to both the numerator and the denominator of the amount of pecans used in the following recipe for toffee, the result is the amount of brown sugar to be used. Find the number. $\text { Toffee }$

$\frac{2}{3} \text { cup pecans. chopped }$

$\frac{3}{4} \text { cup brown sugar (packed) }$

$\frac{1}{2} \text { package }(6-0 z \text { size) semisw eet chocolate }$

$\frac{1}{4} \text { cup butter }$

A) 1
B) 3
C) 2
D) 5
E) 4