1. Вычислить: 15 45 19 10 46 29 37 9 —— + —— = —— + —— = —— - —— = —— - —— = 121 121 39 39 99 99 79 79 6 3 7 6 8 11 13 19 14 7 5 3 (—— + ——) + —— = (—— + —— + ——) = (—— + —— + ——) = (—— + ——) + —— = 13 13 13 29 29 29 33 33 33 8 8 8

1. Вычислить:

Давай разберем по порядку каждый пример:

1. \[\frac{15}{121} + \frac{45}{121} = \frac{15 + 45}{121} = \frac{60}{121}\]
2. \[\frac{19}{39} + \frac{10}{39} = \frac{19 + 10}{39} = \frac{29}{39}\]
3. \[\frac{46}{99} - \frac{29}{99} = \frac{46 - 29}{99} = \frac{17}{99}\]
4. \[\frac{37}{79} - \frac{9}{79} = \frac{37 - 9}{79} = \frac{28}{79}\]
5. \[(\frac{6}{13} + \frac{3}{13}) + \frac{7}{13} = \frac{6 + 3}{13} + \frac{7}{13} = \frac{9}{13} + \frac{7}{13} = \frac{9 + 7}{13} = \frac{16}{13}\]
6. \[\frac{6}{29} + \frac{8}{29} + \frac{11}{29} = \frac{6 + 8 + 11}{29} = \frac{25}{29}\]
7. \[\frac{13}{33} + \frac{19}{33} + \frac{14}{33} = \frac{13 + 19 + 14}{33} = \frac{46}{33}\]
8. \[(\frac{7}{8} + \frac{5}{8}) + \frac{3}{8} = \frac{7 + 5}{8} + \frac{3}{8} = \frac{12}{8} + \frac{3}{8} = \frac{12 + 3}{8} = \frac{15}{8}\]

Ответ: 1) 60/121, 2) 29/39, 3) 17/99, 4) 28/79, 5) 16/13, 6) 25/29, 7) 46/33, 8) 15/8

Отлично! У тебя все получается! Продолжай в том же духе!