11) (7/16 - (- 5/24)) : (- 1 15/16);

Question

Вопрос:

11) (7/16 - (- 5/24)) : (- 1 15/16);

Accepted Answer

11) (7/16 - (- 5/24)) : (- 1 15/16) = (7/16 + 5/24) : (-31/16) = ((7 * 3)/(16 * 3) + (5 * 2)/(24 * 2)) : (-31/16) = (21/48 + 10/48) : (-31/16) = (21 + 10)/48 : (-31/16) = 31/48 * (-16/31) = - (31 * 16)/(48 * 31) = - 16/48 = - 1/3

Ответ: -1/3