-8.9-×=-8.1
×= -8.9+(-8.1)
×= -17
×-5.4= -8.32
×= -8.32+5.4
×=-2.92
×+11/24=5/12 (10/24)
×+11/24 =25/144
×= 25/144-11/24
×=-41/144
-8.9-×=-8.1
×= -8.9+(-8.1)
×= -17
×-5.4= -8.32
×= -8.32+5.4
×=-2.92
×+11/24=5/12 (10/24)
×+11/24 =25/144
×= 25/144-11/24
×=-41/144