Answer:
14.765 days
Explanation:
The Moon has 8 different phases that create an entire Cycle starting with a New Moon. The phases of this cycle are the following...
New Moon
Waxing Crescent
First Quarter
Waxing Gibbous
Full Moon
Waning Gibbous
Last Quarter
Waning Crescent
This entire cycle takes 29.531 days to complete the entire cycle and start with the New Moon phase again. Therefore since the Full Moon phase is halfway through the cycle we can divide the total time it takes for the cycle to complete by 2 to calculate the time between a New Moon and a Full Moon.
29.531 / 2 = 14.765 days
