A 5 2 3 9 July 8, 2019 16 32 64 128 5 2 3 9 1 4 5 2 3 9 )+ 4 5 2 3 9 10 2 5 3 9 as a fraction A 1 2 3 5 8 9 5 a 3 A 5 2 3 3 5-9a=2(0 5a-4)
