Answer
$\frac{2}{3}$ $\ne$ $2(n+\frac{1}{4})$
Work Step by Step
From the problem:
"Two-thirds:" $\frac{2}{3}$
"is not equal to:" $\ne$
"twice the sum of:" $2(addition)$
"the sum of $n$ and one-fourth": $(n+\frac{1}{4})$
Combine:
$\frac{2}{3}$ $\ne$ $2(n+\frac{1}{4})$
