https://french.kwiziq.com/questions/view/use-of-the-definite-article-before-a-fraction
Use of the definite article before a fract | French Q & A | Kwiziq French
I can't explain it other than to say that it is common to use the article in these cases.!
the definite articleusefrenchq
https://www.robmcgibbon.com/the-definite-article/the-definite-article-bg-v2/
The Definite Article - BG v2 - Rob McGibbon
the definite articlebgrob
https://grammarerror.com/correctanswers/basic-articles-the/specific-the-alien-1
Explanations - 10 - Specific Uses of the Definite Article - GrammarError
Answer explanation for question 10 of 12 in the Specific Uses of the Definite Article challenge.
the definite articlespecific usesexplanations