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1)

97/12 = 8 1/12

A = 8

B = 1

49/15 = 3 4/15

K = 3

N = 4

A + B - (K + N) = 8 + 1 - (3 + 4) = 9 - 7 = 2

Ответ: 2

2)

64/25 = 2 14/25

A = 2

B = 14

78/14 = 5 4/7 = 5 8/14

K = 8

N = 8

A + B - (K + N) = 2 + 14 - (8 + 8) = 16 - 16 = 0

Ответ: 0