Question

ayudenme plis estoy en examen rápido porfavor gracias​

Answer 1

$S=(\frac{7}{5} -1)*\frac{25}{22}$

$S=(\frac{7}{5} -\frac{1}{1} )*\frac{25}{22}$

$S=(\frac{7*1-5*1}{5*1})*\frac{25}{22}$

$S=(\frac{7-5}{5})*\frac{25}{22}$

$S=(\frac{2}{5})*\frac{25}{22}$

$S=\frac{2}{5}*\frac{25}{22}$

$S=\frac{2*25}{5*22}$

$S=\frac{50}{110}=\frac{5}{11}$