we have the expression
[tex]\frac{13}{16}-\frac{3}{8}[/tex]
The fractions have different denominators
so
Find out an equivalent fraction for the second term
[tex]\frac{3}{8}*\frac{2}{2}=\frac{6}{16}[/tex]
3/8 and 6/16 are equivalent fractions
substitute in the original expression
[tex]\frac{13}{16}-\frac{6}{16}=\frac{13-6}{16}=\frac{7}{16}[/tex]
