Adjusted R-squared from R-squared

Consider the multi-linear regression model $y_i = \beta_0 + \beta_1 x_{1i} + \beta_2 x_{2i} + \beta_3 x_{3i} + \beta_4 x_{4i} + \epsilon_i, \; i = 1, 2, \dots, 25$, where $\beta_i$, $i = 0, 1, 2, 3, 4$, are unknown parameters, the errors $\epsilon_i$'s are i.i.d. random variables having $N(0, \sigma^2)$ distribution, where $\sigma > 0$ is unknown. Suppose that the value of the coefficient of determination $R^2$ is obtained as $\frac{5}{6}$. Then the value of adjusted $R^2$ is __________ (rounded off to two decimal places).