Найдите значение выражения: *)3-2-1 a)-50+3)-5+ 6)3-4 )2-3-6름: 215-2- B)-3-1 e)3-8+10

а) -5\(\frac{7}{10}\) + 3\(\frac{14}{15}\) = -\(\frac{57}{10}\) + \(\frac{59}{15}\) = -\(\frac{171}{30}\) + \(\frac{118}{30}\) = -\(\frac{53}{30}\) = -1\(\frac{23}{30}\)

г) -5\(\frac{5}{8}\) + \(\frac{7}{10}\) = -\(\frac{45}{8}\) + \(\frac{7}{10}\) = -\(\frac{225}{40}\) + \(\frac{28}{40}\) = -\(\frac{197}{40}\) = -4\(\frac{37}{40}\)

ж) 3\(\frac{1}{2}\) - 2\(\frac{5}{6}\) - 1\(\frac{4}{9}\) = \(\frac{7}{2}\) - \(\frac{17}{6}\) - \(\frac{13}{9}\) = \(\frac{63}{18}\) - \(\frac{51}{18}\) - \(\frac{26}{18}\) = -\(\frac{14}{18}\) = -\(\frac{7}{9}\)

б) 3\(\frac{5}{12}\) - 4\(\frac{9}{16}\) = \(\frac{41}{12}\) - \(\frac{73}{16}\) = \(\frac{164}{48}\) - \(\frac{219}{48}\) = -\(\frac{55}{48}\) = -1\(\frac{7}{48}\)

д) 2\(\frac{3}{8}\) - 3\(\frac{5}{12}\) - 6\(\frac{3}{16}\) = \(\frac{19}{8}\) - \(\frac{41}{12}\) - \(\frac{99}{16}\) = \(\frac{114}{48}\) - \(\frac{164}{48}\) - \(\frac{297}{48}\) = -\(\frac{347}{48}\) = -7\(\frac{11}{48}\)

з) 5\(\frac{1}{4}\) - 2\(\frac{1}{12}\) - 4\(\frac{2}{3}\) = \(\frac{21}{4}\) - \(\frac{25}{12}\) - \(\frac{14}{3}\) = \(\frac{63}{12}\) - \(\frac{25}{12}\) - \(\frac{56}{12}\) = -\(\frac{18}{12}\) = -\(\frac{3}{2}\) = -1\(\frac{1}{2}\)

в) -3\(\frac{1}{6}\) - 1\(\frac{3}{4}\) = -\(\frac{19}{6}\) - \(\frac{7}{4}\) = -\(\frac{38}{12}\) - \(\frac{21}{12}\) = -\(\frac{59}{12}\) = -4\(\frac{11}{12}\)

е) 3\(\frac{3}{15}\) - 8\(\frac{4}{12}\) + 1\(\frac{7}{30}\) = \(\frac{48}{15}\) - \(\frac{25}{3}\) + \(\frac{37}{30}\) = \(\frac{96}{30}\) - \(\frac{250}{30}\) + \(\frac{37}{30}\) = -\(\frac{117}{30}\) = -\(\frac{39}{10}\) = -3\(\frac{9}{10}\)