a) \( \frac{2}{3} + \frac{1}{3} - \frac{16}{3} = \frac{2+1-16}{3} = \frac{-13}{3} = -4\frac{1}{3} \)
b) \( \frac{21}{7} - \frac{11}{7} - \frac{3}{7} = \frac{21-11-3}{7} = \frac{7}{7} = 1 \)
c) \( \frac{34}{26} + \frac{19}{26} - \frac{1}{26} = \frac{34+19-1}{26} = \frac{52}{26} = 2 \)
Ответы:
a) -4 1/3
b) 1
c) 2