Answer:
1.) [tex]2\frac{1}{2}[/tex] and [tex]\frac{4}{9}[/tex]
Step-by-step explanation:
To see which have the common denominator of 18, you must convert the mixed factions to improper fractions first, then try to find the LCM. Use [tex]a\frac{b}{c}=\frac{ac+b}{c}[/tex]
1.)
[tex]2\frac{1}{2}=\frac{5}{2}[/tex]
[tex]\frac{5}{2},\frac{4}{9}[/tex]
Find the LCM:
2,4,6,8,9,10,12,14,16,18,20
9,18
They both have the LCM of 18.
:Done