Решите пж с решением
1) 3 2/15 + 1 2/5 : 1/3 - 2 1/5 = 3 2/15 + 7/5 * 3 - 2 1/5 = 3 2/15 + 4 1/5 - 2 1/5 = 3 2/15 + 2 = 5 2/15 2) (1 1/2 - 1/4) : 3 3/4 + 2/3 = (1 2/4 - 1/4) : 15/4 + 2/3 = 5/4 * 4/15 + 2/3 = 1/3 + 2/3 = 1