(1 4/9+2 5/6-2 3/4)*(2 1/2-11/14)= 3 5/7
1 4/9+2 5/6=13/9+17/6=(26+51)/18=77/18
77/18-2 3/4=77/18-17/4=(154-102)/24=52/24=13/6
2 1/2-11/14=5/2-11/14=(35-11)/14=24/14=12/7
13/6*12/7=26/7=3 5/7
(1 4/9+2 5/6-2 3/4)*(2 1/2-11/14)= 3 5/7
1 4/9+2 5/6=13/9+17/6=(26+51)/18=77/18
77/18-2 3/4=77/18-17/4=(154-102)/24=52/24=13/6
2 1/2-11/14=5/2-11/14=(35-11)/14=24/14=12/7
13/6*12/7=26/7=3 5/7