理解するのに

to understand

→ 理解
phrase Rare #24,158
to understand Here, のに marks the purpose or situation in which something happens, often translated as “to understand” or “in understanding.” It is different from のに meaning “although.”
JA: この説明を理解するのに時間がかかった。
EN: It took time to understand this explanation.

芸術理解するのに文化的背景必要ではない

Cultural background is not necessary to understand art.

彼は状況を理解するのに多少の時間がかかった

It took him some time to understand the situation.

彼女が言っている事を理解するのにずいぶんと時間がかかった

It took me quite a while to understand what she was saying.

少し難しいので理解するのに時間がかかりそうです

It's a little difficult, so I think it may take some time to understand.