a. 30/45
Start by dividing both numerator and denominator by 5.
[tex]\frac{\frac{30}{5}}{\frac{45}{5}}=\frac{6}{9}[/tex]
Then do the same procedure but this time divide by 3
[tex]\frac{\frac{30}{3}}{\frac{45}{3}}=\frac{10}{15}[/tex]
b. 18/24
Similar procedure, this time divide by 2.
[tex]\frac{\frac{18}{2}}{\frac{24}{2}}=\frac{9}{12}[/tex]
Then divide by 3, as done above.
[tex]\frac{\frac{18}{3}}{\frac{24}{3}}=\frac{6}{8}[/tex]
