צמצמו או הרחיבו בשתיים:
6 20 {\displaystyle {\frac {6}{20}}}
10 24 {\displaystyle {\frac {10}{24}}}
2 4 {\displaystyle {\frac {2}{4}}}
7 15 {\displaystyle {\frac {7}{15}}}
3 13 {\displaystyle {\frac {3}{13}}}
5 7 {\displaystyle {\frac {5}{7}}}
