Question

add the following rational no 3/20 and -7/-20​

Answer 1

$\frac{3}{20 } + ( \frac{ - 7}{ - 20} )$

=

$\frac{3}{20 } + \frac{7}{20}$

=

$\frac{3 + 7}{20}$

=

$\frac{10}{20}$

=

$\frac{1}{2} (ans)$