Artie ate $$ \frac{1}{5} $$ of a box of cereal last week and $$ \frac{1}{5} $$ of a box more this week than last week. How much of Artie's box of cereal is left?

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To determine how much of the cereal box Artie has left, let's break down the information step by step.

1. **Cereal Consumed Last Week:**
   - Artie ate $$\frac{1}{5}$$ of the cereal box.

2. **Cereal Consumed This Week:**
   - He ate $$\frac{1}{5}$$ **more** than what he ate last week.
   - This means he ate:
     $$
     \frac{1}{5} \text{ (last week)} + \frac{1}{5} \text{ (additional)} = \frac{2}{5}
     $$
     
3. **Total Cereal Consumed:**
   - Adding both weeks together:
     $$
     \frac{1}{5} + \frac{2}{5} = \frac{3}{5}
     $$
     
4. **Cereal Remaining:**
   - The whole cereal box is considered as 1 (or $$\frac{5}{5}$$).
   - Subtract the consumed portion from the whole:
     $$
     1 - \frac{3}{5} = \frac{2}{5}
     $$

**Answer:**  
$$\boxed{\dfrac{2}{5}}$$ of the cereal box is left.
$$\frac{2}{5}$$ of the cereal box is left.

Artie ate of a box of cereal last week and of a box more this week than last week. How much of Artie’s box of cereal is left?

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