Ответ:

-1,859

Пошаговое объяснение:

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19,25 * 5/11 + 5,76 * 5/12 - 13,009 = 1925/100 * 5/11 + 576/100 * 5/12 - 13,009 = 77/4 * 5/11 + 144/25 * 5/12 - 13,009 = 35/4 + 12/5 - 13,009 = 175/20 + 48/20 - 13,009 = 223/20 - 13,009 = 11 3/20 - 13,009 = 11,15 - 13,009 = -1,859

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