<P> Informally , the numerator and denominator may be distinguished by placement alone but in formal contexts they are always separated by a fraction bar . The fraction bar may be horizontal ( as in 1 / 3 ) , oblique ( as in 1 / 5 ) , or diagonal ( as in ​ ⁄ ) . These marks are respectively known as the horizontal bar , the slash ( US ) or stroke ( UK ) , the division slash , and the fraction slash . In typography , horizontal fractions are also known as `` en '' or `` nut fractions '' and diagonal fractions as `` em fractions '' , based on the width of a line they take up . </P>
<P> Informally , the numerator and denominator may be distinguished by placement alone but in formal contexts they are always separated by a fraction bar . The fraction bar may be horizontal ( as in 1 / 3 ) , oblique ( as in 1 / 5 ) , or diagonal ( as in ​ ⁄ ) . These marks are respectively known as the horizontal bar , the slash ( US ) or stroke ( UK ) , the division slash , and the fraction slash . In typography , horizontal fractions are also known as `` en '' or `` nut fractions '' and diagonal fractions as `` em fractions '' , based on the width of a line they take up . </P>
what do you call the line in a fraction
what do you call the line in a fraction
a fraction bar the horizontal bar the slash ( US ) stroke ( UK ) the division slash the fraction slash
a fraction bar the horizontal bar the slash ( US ) stroke ( UK ) the division slash the fraction slash