1.
a)3/9 = 1/3
b)1 intreg 6/9 = 15/9 = 5/3
c)12/99 = 4/33
j)15/99 = 5/33
e)1 intreg 2/9 = 11/9
2.
a)(13-1)/90 = 12/90 = 2/15
b)(27-2)/90 = 25/90 = 5/18
c)1 intreg (13-1)/90 = 102/90 = 17/15
d)2 intregi (54-5)/90 = 229/90
e)12 intregi (17-1)/90 = 1096/90 = 548/45
