Сравните 26/63 и 17/56 31/42 и 19/24

$\frac{26}{63}$ = $\frac{26}{9*7}$ = $\frac{208}{8*7*9}$
$\frac{17}{56}$ = $\frac{17}{8*7}$ = $\frac{153}{8*7*9}$
⇒ $\frac{26}{63}$ > $\frac{17}{56}$
$\frac{31}{42}$ = $\frac{31}{7*6}$ = $\frac{124}{7*6*4}$
$\frac{19}{24}$ = $\frac{19}{6*4}$ = $\frac{133}{7*6*4}$
⇒ $\frac{31}{42}$ < <img src="https://tex.z-dn.net/?f=+%5Cfrac%7B19%7D%7B24%7D+" id="TexFormula16" title=" \frac{19}{24} " alt=" \frac{19}{24} " align="absmiddle" class="latex-formula">