Because of the difference between the swings here we need to adjust the ball position to allow for this. As the iron swing is more upright, the club head will travel straighter down the target line, whereas the flatter driver swing will see more of an arc approach to the target line and therefore the ball.
For computers, see Lowest common denominator (computers) . In mathematics, the lowest common denominator or least common denominator (abbreviated LCD) is the least common multiple of the denominators of a set of fractions. It simplifies adding, subtracting, and comparing fractions.
Multiply the numerator and denominator by the radical in the denominator. A fraction with a monomial term in the denominator is the easiest to rationalize. Both the top and bottom of the fraction must be multiplied by the same term, because what you are really doing is multiplying by 1. Simplify as needed.