13.2/5-11,2:9.1/3=12.1/5 или =12,2
1) 11,2:9.1/3=11.2/10:9.1/3=112/10:28/3=112/10*3/28=12/10=1.2/10=1.1/5
13.2/5-1.1/5=(13-1)+(2/5-1/5)=12.1/5
13.2/5-11,2:9.1/3=12.1/5 или =12,2
1) 11,2:9.1/3=11.2/10:9.1/3=112/10:28/3=112/10*3/28=12/10=1.2/10=1.1/5
13.2/5-1.1/5=(13-1)+(2/5-1/5)=12.1/5