3/4
67/80
17/48
1/48
3 1/5 or 16/5
123/96
4+2·[3+2-(4-1)]=
8
5·(17-12)=
25
45:5-45:9=
4
20:(16-12)
5
5+3-2·2=
4
10-[6-(-5+4)-2]+1
6
560-2²(34-24)²=
160
3²(15+5)²+2³(15-5)⁴=
83,600
-12+(-64)+(-17)+4+
-89
