(2,48+3 5/9*1 1/8)/(6,1-3,1)

(2,48 + 3 5/9 * 1 1/8) / (6,1 - 3,1) = 2,16
1) 3 5/9 * 1 1/8 = 32/9 * 9/8 = 32/8 = 4
2) 2,48 + 4 = 6,48
3) 6,1 - 3,1 = 3
4) 6,48 : 3 = 2,16