3целых 1/5+9,65сколько будет

3 1/5 + 9,65 =3 1/5  +  9 65/100 = 16/5  +  193/20 = (16 × 4  +  193 × 1)/20 = 64/20 +  193/20 =  257/20 = 12 17/20 = 12,85