(2 4/59-a)-16/59=1 5/59 как решить дроби

(2 4/59 - a) - 16/59 = 1 5/59; 

2 4/59 - a - 16/59 = 1 5/59; 

2 + 4/59 - 16/59 - a = 1 5/59; 

2 - 12/59 - a = 1 5/59; 

1 + 59/59 - 12/59 - a = 1 5/59; 

1 + 47/59 - a = 1 5/59; 

-a = 1 5/59 - 1 - 47/59; 

-a = 5/59 - 47/59; 

-a = -42/59; 

a = 42/59. 

Ответ: а = 42/59.