Answer:
[tex]\huge\boxed{\dfrac{18}{63}=\dfrac{2}{7}}[/tex]
Step-by-step explanation:
[tex]\dfrac{18}{63}\\\\\text{Find GCF (Greatest Common Factor) of 18 and 63}\\\\\text{Factors of 18:}\ 1,\ 2,\ 3,\ 6,\ \boxed{9},\ 18\\\text{Factors of 63:}\ 1,\ 3,\ 7,\ \boxed{9},\ 21,\ 63\\\\GCF(18,\ 63)=\boxed9\\\\\text{Divide the numerator and the denominator by}\ \boxed9:\\\\18:9=2\\63:9=7\\\\\text{Therefore}\ \dfrac{18}{63}=\dfrac{2}{7}[/tex]
