Question

СРОЧНО НУЖНО ПОЖАЛУЙСТА!!!! ​

Answer 1

а) 1/2 + -1/2 = 1-1/2 = 0/2 = 0

б) -5/6 + 5/6 = -5+5/6 = 0/6 = 0

в) -2/3 + 2/3 = -2+2/3 = 0/3 = 0