1. A moving image editing apparatus comprising: a classification unit configured to classify a plurality of moving image data to be combined, into groups according to a frame rate of each of the moving image data, in which each of the moving image data classified into a same group have a frame rate obtained by multiplying a same value by an integer; an obtaining unit configured to obtain, for each of the groups, a total of the moving image data belonging to each of the groups; a determination unit configured to determine a preference frame rate based on the frame rates of the moving image data belonging to the group of which the total of the moving image data is the largest among the groups; a conversion unit configured to convert the moving image data to be combined into the determined preference frame rate; and a combination unit configured to combine the plurality of converted moving image data.