п) 43⋅826.

п) $$43 \cdot \frac{13}{826} = \frac{43}{1} \cdot \frac{13}{826} = \frac{43 \cdot 13}{1 \cdot 826} = \frac{559}{826} = \frac{43}{63} \approx 0.67$$

Ответ: $$\frac{559}{826}$$