18/45 = (18 : 3) / ( 45 : 3) = 6/15 = (6:3) / ( 15 : 3 ) = 2/5
26/78 = ( 26 : 26 ) / ( 78 : 26 ) = 1/3
66/88 = ( 66:11) / ( 88:11) = 6/8 = ( 6 : 2) / ( 8:2) = 3/4
144/288 = ( 144:144) / ( 288 :144) = 1/2
35/105 = (35:35)/(105:35) = 1/3
99/132 = (99 : 3) / ( 132:3) = 33/44 = (33:11) / ( 44:11) = 3/4
