Решите 1 пример даю 20 балов

1)((2/5+5/12)*15/7-19/20)÷(41/2-333/50*5/9)
(49/60*15/7-19/20)÷(41/2-37/10)
(7/4-19/20)÷84/5
4/5*5/84
1/2
2)(11/24+13/26)*36/25-8/15*9/16
23/24*36/25-1/5*3/2
23/2*3/25-3/10
69/50-3/10
Ответ 27/25
3)