Решите уравнение а) 12/53 + 41/53 - k = 17/26 б) 28/54 + 12/54 - n = 8/27
12/53+41/53-k=17/26 (12+41)/53-k=17/26 1-k=17/26 k=9/26 28/54+12/54-n=8/27 (28+12)/54-n=8/27 40/54-n=8/27 20/27-n=8/27 n=12/27 n=4/9 Ответ: k=9/26, n=4/9