Question

cum sa scad 4pe15-7pe15

Answer 1

4/15 -  7/15  =  (4 - 7)/15  =  - 3/15  = - 1/5

Answer 2

$\frac{4}{7} - \frac{7}{15} = \frac{7-4}{15} = \frac{3}{15} = \frac{1}{5}$