Question

СРОЧНО Дам 5 звезд!!!!!​

Answer 1

$a) \: \: \: \: \: 3 \frac{7}{12} - 1 \frac{11}{12} = 2 \frac{19}{12} - 1 \frac{11}{12} = 1 \frac{8}{12} = 1 \frac{2}{3}$

$б) \: \: \: \: \: 8 \frac{8}{31} - 5 \frac{9}{31} = 7 \frac{39}{31} - 5 \frac{9}{31} = 2 \frac{30}{31}$

$в) \: \: \: \: \: 15 \frac{5}{19} - 8 \frac{11}{19} = 14 \frac{24}{19} - 8 \frac{11}{19} = 6 \frac{13}{19}$