Find the coordinates of the point dividing the line segment joining $(1,2)$ and $(9,10)$ in the ratio $1:3$.

Result for $\frac{1 \cdot 9 + 3 \cdot 1}{1 + 3}$

Result for $\frac{1 \cdot 10 + 3 \cdot 2}{1 + 3}$