fraction bar:
Fraction Bars
圖片參考:
http://arcytech.org/java/fractions/images/ix1.gif
IMPORTANT: If you are a teacher and have used the Fractions Bar applet in the classroom or are planning to use it
有人用
http://arcytech.org/java/fractions/
fraction stroke:Can't find
fraction line:
Fraction lines
Resources > Fraction Lines
有人用
http://www.helpingwithmath.com/resources/oth_fraction_lines.htm
"Fraction line","Fraction bar" are OK , but "Fraction stroke" I think not OK.