Which of the following is a true statement?

$\frac{12}{16}>\frac{15}{20}$

$\frac{4}{9}>\frac{3}{7}$

$\frac{5}{12}<mfrac\; id="EditorElement\_4096258"><mrow\; id="EditorElement\_4096251"><mn\; id="EditorElement\_4096248">3</mn></mrow><mrow\; id="EditorElement\_4096257"><mn\; id="EditorElement\_4096254">8</mn></mrow></mfrac>$

$\frac{2}{7}<mfrac\; id="EditorElement\_4096203"><mrow\; id="EditorElement\_4096196"><mn\; id="EditorElement\_4096193">1</mn></mrow><mrow\; id="EditorElement\_4096202"><mn\; id="EditorElement\_4096199">5</mn></mrow></mfrac>$