Question

вычислить





а)-8/15+13/30


б) 7/16-3/4


в) -2/3-11/18



г) -19/20+4/25

Answer 1

а) -8/15+13/30 = (-16+13)/30 = -3/30 = -1/10
б) 7/16-3/4 = (7-12)/16 = -5/16
в) -2/3-11/18 = (-12-11)/18 = -23/18 = -1 5/18
г) -19/20+4/25 = (-95+16)/100 = -79/100