To solve the story problem where Martha has 3 liters of milk and pours a certain amount (let's say \( \frac{1}{4} \) liter, for example) into each glass, we can set up the following equation to find the number of glasses she can fill:
The number of glasses \( G \) can be calculated using the formula:
\[ G = \frac{\text{Total Volume of Milk}}{\text{Volume of Milk per Glass}} \]
In this case, the equation would look like:
\[ G = \frac{3 \text{ liters}}{\frac{1}{4} \text{ liter per glass}} \]
To perform this division, we can calculate:
\[ G = 3 \div \frac{1}{4} = 3 \times 4 = 12 \]
So, if Martha is pouring \( \frac{1}{4} \) liters into each glass, she can pour 12 glasses of milk.
If the fraction you intended was different (like \( \frac{1}{3} \) or \( \frac{1}{2} \)), simply replace \( \frac{1}{4} \) in the equation with the respective fraction and calculate accordingly.
Please provide the specific fraction if you have it, or let me know if you need further clarification!