I spend about half my time, he spends two-thirds of his time, and she spends a quarter, or maybe a third, of her time on research.
The hyphen goes between two and thirds so that it is clear that two and third are connected. Hyphens are used when two words are used together to create one meaning. Two and thirds are used together to show that he only spent a fraction of his time (2/3) researching. In the other options about-half are two separate ideas about and half. The same with a and third; they both are not numbers.
A hyphen (- ) is an accentuation mark that is utilized to join words or portions of words. It's not exchangeable with different kinds of runs.
The sentence should the writer add a hyphen is, "I spend about half my time, he spends two-thirds of his time, and she spends a quarter, or maybe a third, of her time on research." Thus, the correct option is option D.
Utilize a hyphen in a compound modifier when the modifier precedes the word it's altering.
The hyphen goes among two and thirds so obviously two and third are associated.
Hyphens are utilized when two words are utilized together to make one important. Two and thirds are utilized together to show that he just invested a small amount of his energy (2/3) exploring.
In different choices about half are two separate thoughts regarding and half. The equivalent with an and third the two of them are not numbers.
For more information about the hyphen, refer to the following link:
https://brainly.com/question/4134414
