Simplifying Fractions
Write each of the following in simplest form. Write DNE if the answer does not exist.

70=\displaystyle \frac{{7}}{{0}}=
 
71=\displaystyle \frac{{7}}{{1}}=
 
17=\displaystyle \frac{{1}}{{7}}=
 
07=\displaystyle \frac{{0}}{{7}}=