0.2+(4.8-61/8)= 0,2+4,8-61/8=5-61/8=-21/8=-2,625
-(3 1_2+2 1_9)+31_9=-3 1/2-2 1/9+31/9=-3 1/2+50/9=44/18=22/9=2 4/9
0.2+(4.8-61/8)= 0,2+4,8-61/8=5-61/8=-21/8=-2,625
-(3 1_2+2 1_9)+31_9=-3 1/2-2 1/9+31/9=-3 1/2+50/9=44/18=22/9=2 4/9