Look at this series: (1/9), (1/3), 1, ____ , 9,

Look at this series: (1/9), (1/3), 1, ____ , 9, ... What number should fill the blank?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #39692