Вычислите 1)29 49/53-8 49/53 2)(20 16/25+13 9/ 4/14+7 13/14). надо 25

1) 29 49/53 - 8 49/53 = 21, 2)1. 20 16/25 + 13 9/25 = 33 25/25 = 34  2. 23 4/14 + 7 13/14 = 30 17/14 = 31 3/14 3. 34 - 31 3/14 = 33 14/14 - 31 3/14 = 2 11/14