[GRASS-user] Generalize slope map in QGIS

Hello friends (as) I made a map of terrain slopes percentage.

The map has a pixel size of 10 * 10 meters and desire "generalize to minimum mapping units (UMC) of 1 hectare and remove all pixels that have very tiny image.

As I can make that generalization UMC 1 hectare in QGIS?

attached original image here: https://www.dropbox.com/sh/hxovug8siw2778v/AABebBYEMmkMRQnu08FstZ8pa?dl=0

Thank you!!

Eddison