(1 3/4 - 2 5/6) : 1,3 =
= (1 9/12 - 2 10/12) : 13/10 =
= -1 1/12 * 10/13 =
= -13/12 * 10/13 =
= -5/6
Ответ: -5/6
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(1 3/4 - 2 5/6) : 1,3 =
= (1 9/12 - 2 10/12) : 13/10 =
= -1 1/12 * 10/13 =
= -13/12 * 10/13 =
= -5/6
Ответ: -5/6