Question

упростите выражение
4 целых 2/9 y+3 1/5y-2y

Answer 1

4 2/9у + 3 1/5у - 2у = у(4 2/9 + 3 1/5 -2) = у(38/9 + 16/5 - 2/1) = у(190+144-90)/45 = 244/45у = 5 19/45у