Today we briefly discuss the expression of fractions, percentages, and time in text.
Fractions appearing in nonquoted text either alone or with numbers less than 10 are spelled out; fractions appearing with numbers 10 or higher are expressed as numerals, e.g.:
- My cat is nine and one-half years old.
- Stephen has an 11 1/2 shoe size.
When fractions are expressed as numerals, insert a space between the whole number and the fraction. Don’t use a hyphen. (“10 2/3,” not “10-2/3.”)
Spell out the word “percent” when used in text, but use numerals for the number itself (unless the number begins a sentence). Use the percent sign (%) in tables, e.g.:
- There is a 60 percent chance it will rain.
- Thirty percent of the work had been completed.
Always include minutes and “a.m.” or “p.m.,” e.g.:
- Trial started at 9:00 a.m. sharp. (Not “9 a.m.”)
- We have dinner reservations at 7:00 p.m. at Genoa. (Not 7 o’clock in the evening.)
That is all for now …