Question

3 ⅖ + 4¹ × ⅞ ¿,How long is the sun?

Answer 1

$3\frac{2}{5}+4\frac{7}{8}$

For this case we can do the following:

$\frac{3\cdot5+2}{5}+\frac{4\cdot8+7}{8}=\frac{17}{5}+\frac{39}{8}$

And then the sum would be given by:

$\frac{17}{5}+\frac{39}{8}=\frac{331}{40}$