1) 5*5+2=27, 27/5
27/5-3/5=24/5
2)4*9+4=40,40/9
40/9-5/6=80/18-15/18=65/18
3)3*16+7=55,55/16
1*8+5=13,13/8
55/16-13/8=55/16-26/16=29/16
4)2*9+5=23,23/9
3*7+4=25,25/7
23/9+25/7=161/63+225/63=386/63
5)6*15+2=92,92/15
3*3+2=11,11/3
92/15-11/3=92/15-55/15=37/15