(3/11 + 7/11) : 5 * 11 = 2,
1) 3/11 + 7/11 = 10/11,
2) 10/11 : 5 = 10/11 * 1/5 = 2/11,
3) 2/11 * 11 = 2
(3/11 + 7/11) : 5 * 11 = 2,
1) 3/11 + 7/11 = 10/11,
2) 10/11 : 5 = 10/11 * 1/5 = 2/11,
3) 2/11 * 11 = 2