1. The problem states Mrs. Aseidu gave $\frac{1}{4}$ of the rice to Ama and $\frac{2}{3}$ to Kofi. 2. To find the fraction of rice left, we need to subtract these portions from the whole (1). 3. First, find a common denominator for $\frac{1}{4}$ and $\frac{2}{3}$, which is 12. 4. Convert $\frac{1}{4}$ to $\frac{3}{12}$ and $\frac{2}{3}$ to $\frac{8}{12}$. 5. Add the fractions given to Ama and Kofi: $\frac{3}{12} + \frac{8}{12} = \frac{11}{12}$. 6. Subtract from the whole to find the remaining fraction: $1 - \frac{11}{12} = \frac{1}{12}$. 7. Therefore, the fraction of the rice left is $\frac{1}{12}$.