2 3/7 : n = 6 1/2 - 4 2/7
17/7 × 1/n = 13/2 - 30/7
17/7n × 1/n = 13/2 - 30/7
17/7n = 31/14
227n = 238
n = 1 3/31
2 3/7 : n = 6 1/2 - 4 2/7
17/7 × 1/n = 13/2 - 30/7
17/7n × 1/n = 13/2 - 30/7
17/7n = 31/14
227n = 238
n = 1 3/31