1 3 2
(5/6 - 3/10) : (3/10 + 2/15) = 1 3/13
1) 5/6 - 3/10 = 50/60 - 18/60 = 32/60 = 8/15
2) 3/10 + 2/15 = 9/30 + 4/30 = 13/30
3) 8/15 : 13/30 = 8/15 * 30/13 = 8/1 * 2/13 = 16/13 = 1 3/13
(1494+1854)/(1104-1077)*378-27463*0+37400/136=47147
1)1494+1854=3348
2)1104-1077=27
3)3348/27=124
4)124*378=46872
5)27463*0=0
6)37400/136=275
7)46872+275=47147