To simplify a fraction, divide both the numerator and the denominator by their greatest common factor (GCF).
Factors of 18: 1, 2, 3, 6, 9, 18
Factors of 8: 1, 2, 4, 8
Common Factors: 1, 2
GCF: 2
[tex] \frac{18}{8} = \frac{18:2}{8:2} = \frac{9}{4} \\ \\ simplified=\frac{9}{4} [/tex]