 <translate> Oliver had 135 stickers. He used 1/3 of his stickers, gave 2/5 of the remaining to his friend, and kept the remaining stickers. How many stickers did he keep?
Thoughts? Step-by-step reasoning: <yor> Oliver ní ohun èlò ìdìpọ̀ mọ́kànléláàádóje. Ó lo ìdá kan nínú mẹ́ta lára àwọn ohun tó fi ń dánra wò, ó fún ọ̀rẹ́ rẹ̀ ní ìdá méjì nínú márùn-ún, ó sì fi àwọn ohun tó ṣẹ́ kù pa mọ́. Ẹ̀dà mélòó ló wà lára rẹ̀? Ṣé o ní èrò kan? Àlàyé tó ṣe ṣísẹ̀-n-tẹ̀lé: 