21/34. 21 and 34 have no common factors (21=3x7, 34=2x17) so it's impossible to reduce it any further.
55
34 times with a remainder of 13
21 and 13.. 21-13=8 21+13=34 34/2 = 17,+4 = 21... 34-21 = 13
21
21/34. 21 and 34 have no common factors (21=3x7, 34=2x17) so it's impossible to reduce it any further.
55
34 times with a remainder of 13
21
21 and 13.. 21-13=8 21+13=34 34/2 = 17,+4 = 21... 34-21 = 13
21
The common difference is 13 because 21-8=13, 34-21=13, and 34-47=13.
21.2647
47
-13 + 34 = 21
34
34+21 = 55 and 70-21 = 55