Bài 1:
a: 36/64=9/16=243/432
-12/81=-4/27=-36/432
b: 14/13=322/299
-4/23=-52/299
c: -13/30=-52/120
-21/40=-63/120
d: 24/54=4/9=80/180
37/-180=-37/180
Đúng 1
Bình luận (0)