efan has 4
1
2
cups of oats. He uses 3
1
4
cups to make granola bars for a camping trip. He saves the rest of the oats to feed to his parrot, Coco. If Coco needs
1
4
of a cup of oats each day, how many days can Stefan feed Coco with the oats he has left?

Let's break down the problem step by step.

1. **Total oats Stefan has:**  
   Stefan starts with \( 4 \frac{1}{2} \) cups of oats.  
   In improper fraction form, this is:
   \[
   4 \frac{1}{2} = \frac{9}{2} \text{ cups of oats}
   \]

2. **Oats used for granola bars:**  
   Stefan uses \( 3 \frac{1}{4} \) cups of oats for the granola bars.  
   In improper fraction form, this is:
   \[
   3 \frac{1}{4} = \frac{13}{4} \text{ cups of oats}
   \]

3. **Oats remaining:**  
   To find out how much oats Stefan has left, subtract the oats used from the total oats:
   \[
   \frac{9}{2} - \frac{13}{4}
   \]
   To subtract these fractions, first find a common denominator:
   \[
   \frac{9}{2} = \frac{18}{4}
   \]
   Now subtract:
   \[
   \frac{18}{4} - \frac{13}{4} = \frac{5}{4} \text{ cups of oats remaining}
   \]

4. **Days to feed Coco:**  
   Coco needs \( \frac{1}{4} \) cup of oats each day. To find out how many days Stefan can feed Coco, divide the remaining oats by the daily amount needed:
   \[
   \frac{5}{4} \div \frac{1}{4} = \frac{5}{4} \times \frac{4}{1} = 5 \text{ days}
   \]

So, **Stefan can feed Coco for 5 days** with the oats he has left.

Would you like more details or have any questions?

Here are some related questions:
1. What if Stefan had started with 6 cups of oats? How many days could he feed Coco?
2. If Coco needed \( \frac{1}{2} \) cup of oats each day instead, how many days could Stefan feed Coco?
3. How much oats would be left after feeding Coco for 2 days?
4. If Stefan saved an additional \( \frac{1}{4} \) cup of oats, how many more days could he feed Coco?
5. What if Stefan used \( 4 \frac{1}{4} \) cups for granola bars instead?

**Tip:** When working with mixed numbers, it's often easier to convert them to improper fractions for calculations like addition, subtraction, and division.

Explore Stefan's oats problem where he uses 3 1/4 cups of oats for granola bars out of 4 1/2 cups total. Calculate how many days Stefan can feed Coco with the remaining 5/4 cups of oats, knowing Coco needs 1/4 cup daily. Learn step-by-step how to solve this fraction subtraction problem suitable for Grades 4-6.

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