Answer:
[tex]\large\boxed{1-\dfrac{5}{8}=\dfrac{3}{8}}[/tex]
Step-by-step explanation:
[tex]1-\dfrac{5}{8}=\dfrac{8}{8}-\dfrac{5}{8}=\dfrac{8-5}{8}=\dfrac{3}{8}\\\\1=\dfrac{8}{8}\ \text{because}\ \dfrac{a}{b}=a:b,\ \text{therefore}\ \dfrac{8}{8}=8:8=1[/tex]
