Related concepts to fractions include ratios, proportions, percents, decimals, probabilities, cents, division, inverses. Parts of fractions are numerator and denominator. Fractions greater than 1 are improper fractions or mixed numbers.
If you need help with fractions, just ask. But the functions will have to be typed in words, such as "one fourth divided by two" or whatever.
have distinctly different meanings
nine tenths words for decimal form look like words for fractions except all denominators must be multiples of 10.
The number 90 is written out in words as such: ninety. You should spell out a number rather than write it in number form in particular scenarios, such as if you are beginning a sentence with a number.
You Italicize foreign words (Not absorbed into English)
italics
Apostrophe
you should use addition in a problem involving fractions if you see key words that mean to add, for example sum increase, altogether, etc
"Lab work" should be written as two words.
Capitalization
One millionth.
One thousandth.
One hundredth.
Quotation marks should always be applied to direct speech to indicate the exact words spoken by a person or character. This helps differentiate dialogue from the rest of the text and makes it clear to readers that the words are being directly quoted.
The general rule in formal writing (that which you do for school or work) is yes. All numbers that appear as two or fewer words should be written out.
Underdeveloped should be written as one word, not two words or hyphenated. I hope this answered your question. :)