(5,75- 6 1/7)*1 3/11-2 1/12
5,75=5 3/4 1) 5 3/4-6 1/7=23/4-43/7= - 11/28 2) - 11/28*1 3/11 =- 11/28*14/11= - 1/2 3) - 1/2-2 1/12 = -6/12 - 25/12= 31/12 = 2 7/12