each kanji in Japanese has more pronunciations on average, 最も（もっとも）強い（つよい）＝最強（さいきょう）の＝最强的(zui4 qiang2 de). 最強の has simular pronunciation to 最强的 but completely diiferent from 最も強い. Simple words are completely different from Chinese because they appeared before Japanese could learn from China. Though they are written in kanji, it won’t help you. If you know many advanced words of Japanese it will help a lot, they have simular pronunciation to Chinese. But you just know 仮名, well it won’t help