315 * 5/12 = 1575/12 = 131 3/12 = 131 1/4
50 * 5/12 = 250/12 = 20 10/12 = 20 5/6
1092 * 5/12 = 91 * 5 = 455
315 * 5/12 = 1575/12 = 131 3/12 = 131 1/4
50 * 5/12 = 250/12 = 20 10/12 = 20 5/6
1092 * 5/12 = 91 * 5 = 455