Câu trả lời:
650dm2 ;)
650dm2 ;)
63/81 = 21/27
25/75 = 5/12
60/200 = 3/10
17/51 = 1/3
ko có j :>
2/5 = 4/20, 10/25, 6/15, 12/30, 15/8 ![]()
lỗi ạ