Решите с решением 5 1/3-7,0 (3)
5 1/3- 7.0(3)= (5*3+1)/3-7 1/30= 16/3-(7*30+1)/30=16*10/(3*10)-211/30= 160/30-211/30=-51/30=-1 21/30=-1 7/10=-1.7