Simplify:

If your numerator or denominator has more than one factor, put parentheses around it. For example, if your answer is 12a\displaystyle \frac{{1}}{{{2}{a}}} you would enter 1/(2a).

11y1\displaystyle {11}{y}^{{-{{1}}}} =  

(11y)1\displaystyle {\left({11}{y}\right)}^{{-{{1}}}} =  

(11y)1\displaystyle {\left(-{11}{y}\right)}^{{-{{1}}}} =