12 of 1/13 = 12/13
The LCM of 12 and 13 is 12 * 13 / GCF(12,13) = 156.
13 - 12 + 5 = 6
13 + -12 - 5 = -4 13 + -12 = 1 - 5 = -4
6/13 - 4/12 =5/396/13 * 12/12 = 72/1564/12 * 13/13 = 52/156==============....................20/156 or 5/39
12/13 = 92.3 %
13 + 12 = 25
25-12 = 13
13/12 is in its simplest form.
3, 12, or 13 colonies
25
13 subtracted from 12 = 1