Ennyingo z’omugerageranyo ziyitibwa ensooko (namba esookerwako) n’engoberezi(namba egigoberera). Ensooko ye “kinnawaggulu” (numerator) ate engoberezi ye “kinnawansi” (denominator). “Omugerageranyo” kiggwayo “omuwendo ogugerageranya”.