Evan and Jose are finding [tex]3 \frac{3}{4} -1 \frac{7}{2} [/tex]. Who is correct? Explain

Evan: [tex]3 \frac{3}{4} -1 \frac{7}{8} =3 \frac{6}{8} -1 \frac{7}{8} =2 \frac{1}{8} [/tex]

Jose: [tex]3 \frac{3}{4} -1 \frac{7}{8} =3 \frac{6}{8} -1 \frac{7}{8} =2 \frac{14}{8} -1 \frac{7}{8} or 1 \frac{7}{8} [/tex]