Compare [math]\frac{1}{4}[/math] and [math]\frac{1}{6}[/math]. Which is bigger?[br]Compare [math]\frac{1}{8}[/math] and [math]\frac{1}{3}[/math]. Which is bigger?[br]Compare [math]\frac{1}{2}[/math] and [math]\frac{1}{7}[/math]. Which is bigger?[br][br]How does [math]\frac{1}{9}[/math] compare with [math]\frac{1}{15}[/math]? Which is bigger? How do you know?

Compare [math]\frac{2}{5}[/math]and [math]\frac{2}{9}[/math]. Which is bigger?[br]Compare [math]\frac{4}{10}[/math] and [math]\frac{4}{6}[/math]. Which is bigger?[br]Compare [math]\frac{3}{8}[/math] and [math]\frac{3}{7}[/math]. Which is bigger?[br][br]How does [math]\frac{7}{8}[/math] compare with [math]\frac{7}{15}[/math]? Which is bigger? How do you know?

Compare [math]\frac{7}{8}[/math]and [math]\frac{2}{9}[/math]. Which is bigger?[br]Compare [math]\frac{5}{10}[/math] and [math]\frac{4}{8}[/math]. Which is bigger?[br]Compare [math]\frac{3}{10}[/math] and [math]\frac{4}{5}[/math]. Which is bigger?[br][br]How does [math]\frac{19}{20}[/math] compare with [math]\frac{2}{15}[/math]? Which is bigger? How do you know?