1) 4/7 = 36/63; 5/9 = 35/63;
4/7 > 5/9.
2) 7/12 = 35/60; 6/10 = 36/60;
7/12 < 6/10.
3) 5/6 = 55/66; 9/11 = 54/66;
5/6 > 9/11.
4) 3/10 = 9/30; 4/15 = 8/30;
3/10 > 4/15.
1) 4/7 = 36/63; 5/9 = 35/63;
4/7 > 5/9.
2) 7/12 = 35/60; 6/10 = 36/60;
7/12 < 6/10.
3) 5/6 = 55/66; 9/11 = 54/66;
5/6 > 9/11.
4) 3/10 = 9/30; 4/15 = 8/30;
3/10 > 4/15.