So sánh phân số

{"id":2104,"type":"document","url":"https://biteducation.easyedu.vn/sites/default/files/easyschool/upload/2025/11/27.btct_27_-_toan_-_kntt.docx","width":null,"height":null,"thumbnail":"https://biteducation.easyedu.vn/sites/all/themes/easyedu/images/word-large.png"}