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Let's solve the problems on the worksheet.

### Problem 3:
"A giant sub is cut into 60 pieces. There are 40 pieces left over. What fraction of the sub is left over?"

1. The total number of pieces is \( 60 \).
2. The number of pieces left over is \( 40 \).

To find the fraction left over:
\[
\text{Fraction} = \frac{40}{60}
\]

Now, we simplify \( \frac{40}{60} \):
\[
\frac{40}{60} = \frac{2}{3} \quad \text{(dividing both numerator and denominator by 20)}
\]

So, the simplified fraction of the sub left over is \( \frac{2}{3} \).

### Problem 4:
"In a class of 30 students, 12 of them like volleyball. What fraction of the class likes volleyball?"

1. The total number of students is \( 30 \).
2. The number of students who like volleyball is \( 12 \).

To find the fraction of students who like volleyball:
\[
\text{Fraction} = \frac{12}{30}
\]

Now, we simplify \( \frac{12}{30} \):
\[
\frac{12}{30} = \frac{2}{5} \quad \text{(dividing both numerator and denominator by 6)}
\]

So, the simplified fraction of students who like volleyball is \( \frac{2}{5} \).

### Summary
- **Problem 3 Answer**: \( \frac{2}{3} \)
- **Problem 4 Answer**: \( \frac{2}{5} \)

Would you like more details or have any questions about these solutions?

### Additional Related Questions:
1. If the giant sub was cut into 80 pieces instead, and 40 pieces were left, what fraction would that be?
2. How would the fraction change in Problem 4 if there were 15 students who liked volleyball out of 30?
3. What is the decimal equivalent of the fraction \( \frac{2}{3} \) from Problem 3?
4. If the class size increased to 60 but the number of students who liked volleyball remained 12, what fraction of the class would that be?
5. Can you determine the percentage of the class that likes volleyball using the fraction \( \frac{2}{5} \)?

### Tip:
Always reduce fractions to their simplest form by finding the greatest common divisor (GCD) of the numerator and denominator.

3) A giant sub is cut into 60 pieces. There are 40 pieces left over. What fraction of the sub is left over? 4) In a class of 30 students, 12 of them like volleyball. What fraction of the class likes volleyball?

Learn how to solve real-world fraction problems, such as determining what fraction of a sub sandwich is left or what fraction of a class likes volleyball. This problem focuses on simplifying fractions and is perfect for students in Grades 4-6.

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