Bǎ chúhào huàn chéng fēnshù xiàn jiù chéng le fēnshù.
Replace the division sign with a fraction bar and you get a fraction.
Tips
usage
One of the four basic-arithmetic signs: 加号 (+ jiāhào), 减号 (- jiǎnhào), 乘号 (× chénghào), 除号 (÷ chúhào). 号 here means 'sign / symbol' — same character as in 问号 ('question mark').