Respuesta :
1/4 I believe would be the fraction because 360 degrees is a full rotation and 90 degrees is 25% of 360 and 25% is 1/4 of 100%
rotation means you have a circle
total degrees in a circle = 360
90 degrees out of 360 degrees = 1/4
total degrees in a circle = 360
90 degrees out of 360 degrees = 1/4