Cine mă ajuta ii dau 80 puncte va rog! Am nevoie de punctul 4
Răspunsuri la întrebare
Prima linie:
a+b = 7/5 + 3/5 = (7+3)/5 = 10/5 = 2
b-c = 3/5 - 2/5 = (3-2)/5 = 1/5
(a+b)-c = 7/5 + 3/5 - 2/5 = (7+3-2)/5 = 8/5
a+(b-c) = 7/5 + (3/5 - 2/5) = 7/5 + 1/5 = 8/5
a-(b-c) = 7/5 -(3/5 - 2/5) = 7/5 - 1/5 = (7-1)/5 = 6/5
a-b-c = 7/5 - 3/5 - 2/5 = (7-3-2)/5 = 2/5
a-b+c = 7/5 - 3/5 + 2/5 = (7-3+2)/5 = 6/5
A doua linie:
a+b= 5/8 + 3/8 = (5+3)/8 = 8/8 = 1
b-c = 3/8 - 1/8 = (3-1)/8 = 2/8 = 1/4
(a+b)-c = 1 - 1/8 = (8-1)/8 = 7/8
a+(b-c) = 5/8 + 2/8 = (5+2)/8 = 7/8
a-(b-c) = 5/8 - 2/8 = (5-2)/8 = 3/8
a-b-c = 5/8 - 3/8 - 1/8 = (5-3-1)/8 = 1/8
a-b+c = 5/8 - 3/8 + 1/8 = (5-3+1)/8 = 3/8
A treia linie:
a+b = 17/11 + 9/11 = (17+9)/11 = 26/11
b-c = 9/11 - 4/11 = (9-4)/11 = 5/11
(a+b)-c = 26/11 - 4/11 = (26-4)/11 = 22/11 = 2
a+(b-c) = 17/11 + 5/11 = (17+5)/11 = 22/11 = 2
a-(b-c) = 17/11 - 5/11 = (17-5)/11 = 12/11
a-b-c = 17/11 - 9/11 - 4/11 = (17-9-4)/11 = 4/11
a-b+c = 17/11 - 9/11 + 4/11 = (17-9+4)/11 = 12/11
A patra linie:
a+b = 11/18 + 7/18 = (11+7)/18 = 18/18 = 1
b-c = 7/18 - 2/18 = (7-2)/18 = 5/18
(a+b)-c = 18/18 - 2/18 = (18-2)/18 = 16/18 = 8/9
a+(b-c) = 11/18 + 5/18 = (11+5)/18 = 16/18 = 8/9
a-(b-c) = 11/18 - 5/18 = (11-5)/18 = 6/8 = 3/4
a-b-c = 11/18 - 7/18 - 2/18 = (11-7-2)/18 = 2/18 = 1/9
a-b+c = 11/18 - 7/18 + 2/18 = (11-7+2)/18 = 6/18 = 3/9 = 1/3
A cincea linie:
a+b = 27/20 + 13/20 = (27+13)/20 = 40/20 = 2
b-c = 13/20 - 10/20 = (13-10)/20 = 3/20
(a+b)-c = 40/20 - 10/20 = (40-10)/20 = 30/20 = 3/2
a+(b-c) = 27/20 + 3/20 = (27+3)/20 = 30/20 = 3/2
a-(b-c) = 27/20 - 3/20 = (27-3)/20 = 24/20 = 12/10 = 6/5
a-b-c = 27/20 - 13/20 - 10/20 = 4/20 = 1/5
a-b + c = 27/20 - 13/20 + 10/20 = (27-13+10)/20 = 24/20 = 6/5
A şasea linie:
a+b = 21/24 + 17/24 = (21+17)/24 = 38/24 = 19/12
b-c = 17/24 - 4/24 = (17-4)/24 = 13/24
(a+b)-c = 38/24 - 4/24 = (38-4)/24 = 34/24 = 17/12
a+(b-c) = 21/24 + 13/24 = (21+13)/24 = 34/24 = 17/12
a-(b-c) = 21/24 - 13/24 = (21-13)/24 = 8/24 = 1/3
a-b-c = 21/24 - 17/24 - 4/24 = (21-17-4)/24 = 0/24 = 0
a-b+c = 21/24 - 17/24 + 4/24 = (21-17+4)/24 = 8/24 = 1/3
" / " = linie de fracție