Use the midpoint formula: (left(frac{x_1+x_2}{2}, frac{y_1+y_2}{2}right))
Add the x-coordinates of the two points
Divide the sum of the x-coordinates by 2
Add the y-coordinates of the two points
Divide the sum of the y-coordinates by 2
Write the result as an ordered pair
For 3D points, use (left(frac{x_1+x_2}{2}, frac{y_1+y_2}{2}, frac{z_1+z_2}{2}right))