Complex sentence: Lexical similarity between Eastern Tamang (which is regarded as the most prominent) and other Tamang languages varies between 81% to 63%; lexical similarity between Spanish and Portuguese, for instance, is estimated at 89%.
Split into simpler sentences: Lexical similarity between Eastern Tamang (which is regarded as the most prominent) and other Tamang languages varies between 81% to 63%. For comparison, lexical similarity between Spanish and Portuguese, is estimated at 89%.