Помогите решить! 3целых 1/4-1целая 3/5=
(3*(1/4))-(1*(3/5))=((3*4+1)/4)-((1*5+3)/5)=(13/4)-(8/5)=((13/4)*(5/5))-((8/5)*(4/4)) = (65/20)-(32/20)= 33/20......