Zhabalmel
6 год назад
11целых 2/9 -(3 целых 17/19 + 6 целых 14/19)
ПОМОГИТЕ РЕШИТЬ ПОЖАЛУЙСТА!!!
ОТВЕТЫ
Мосальский
Jun 28, 2019
11 2/9 - ( 3 17/19 + 6 14/19) = 101/171
1) 3 17/19 + 6 14/19 = 9 17+14/19 = 9 31/19 = 10 12/19
2) 11 2/9 - 10 12/19 = 1 + 2/9 - 12/19 = 1 + 2·19/9·19 - 12·9/19·9 =
= 1 + 38/171 - 108/171 = 1 + 38-108/171 = 1 - 70/171 = 171/171 - 70/171 = = 101/171.
1) 3 17/19 + 6 14/19 = 9 17+14/19 = 9 31/19 = 10 12/19
2) 11 2/9 - 10 12/19 = 1 + 2/9 - 12/19 = 1 + 2·19/9·19 - 12·9/19·9 =
= 1 + 38/171 - 108/171 = 1 + 38-108/171 = 1 - 70/171 = 171/171 - 70/171 = = 101/171.
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