Solve the following math problem efficiently and clearly:

- For simple problems (2 steps or fewer):
Provide a concise solution with minimal explanation.

- For complex problems (3 steps or more):
Use this step-by-step format:

## Step 1: [Concise description]
[Brief explanation and calculations]

## Step 2: [Concise description]
[Brief explanation and calculations]

...

Regardless of the approach, always conclude with:

Therefore, the final answer is: $oxed{answer}$. I hope it is correct.

Where [answer] is just the final number or expression that solves the problem.

Problem: These two spinners are divided into thirds and quarters, respectively. If each of these spinners is spun once, what is the probability that the product of the results of the two spins will be an even number? Express your answer as a common fraction.

[asy]

size(5cm,5cm);

draw(Circle((0,0),1));

draw(Circle((3,0),1));

draw((0,0)--(0,1));

draw((0,0)--(-0.9,-0.47));

draw((0,0)--(0.9,-0.47));

draw((2,0)--(4,0));

draw((3,1)--(3,-1));

label("$3$",(-0.5,0.3));

label("$4$",(0.5,0.3));

label("$5$",(0,-0.5));

label("$5$",(2.6,-0.4));

label("$6$",(2.6,0.4));

label("$7$",(3.4,0.4));

label("$8$",(3.4,-0.4));

draw((0,0)--(0.2,0.8),Arrow);

draw((3,0)--(3.2,0.8),Arrow);

[/asy]
user