Verified answer

#1

1) 2b/4 = b/2

2) а в кв./ас = а/с

3) а*(b - 2)/5*(b - 2) = а/5

#2

1) а/6 - b/6 = а - b/6

2) 5а/8b + 3а/8b = 5а + 3а/8b = 8а/8b = а/b

3) 2/(m - n) + 1/(n - m) = 2/(m-n) - 1/(m - n) = 1/(m-n)

это ответ, поздравляю