rad 3 (9/ rad 54 - 4/ rad 24) - rad 2 (8/rad 96 - 18/rad 216) + 1/12 (rad 12 - rad 32) =
= rad 3 (9/3 rad 6 - 4/2 rad 6) - rad 2 (8/4 rad 6 - 18/6 rad 6) + 1/12 (2 rad 3 - 4 rad 2) =
= rad 3 (3/rad 6 - 2/rad 6) - rad 2(2/rad 6 - 3/rad 6) + 2/12(rad 3 - 2 rad 2) =
= rad 3 * 1/rad 6 - rad 2 * (-1/rad 6) + 1/6 (rad 3 - 2 rad 2) =
= 1/ rad 2 + 1/ rad 3 + rad 3/6 - rad 2/3 =
= rad 2/2 + rad 3/3 + rad 3/6 - rad 2/3 =
= 3 rad 2/6 - 2 rad 2/6 + 2 rad 3/6 + rad 3/6 =
= rad 2/6 + 3 rad 3/6 = rad 2/6 + rad 3/2