5 4 5 8 15 July 8, 2019 16 32 64 128 4 5 8 15 as a fraction 4 5 8 15 х 5 12 4 5 8 15 number series 4 5 8 15 answer 4 5 x+ 2 5 )= 8 15 5 4 x 3 5 )= 15 8 4 5 8 15 equals
