3целых 8/25+1целая 3/40.
3 8/25 + 1 3/40 = 3,32 + 1,075 = 4,395 или 3 8/25 + 1 3/40 = 3 64/200 + 1 15/200 = 4 79/200
3 8/25 + 1 3/40 = 4 79/200 = 4,395.