Решите ! 1) 3 2/5 + 4 1/5 - 2 2/5 - 3 4/5 = 2) 3 1/7 - 1 2/7 - 1 3/7 + 4 5/7 = !

1) = 7 3/5 -2 2/5 - 3 4/5 = 5 1/5 -3 4/5 = 4 6/5 - 3 4/5 = 1 2/5
2) = 2 8/7 - 1 2/7 - 1 3/7 + 4 5/7 = 1 6/7 - 1 3/7 +4 5/7 = 3/7 +4 5/7 = 4 8/7 = 5 1/7