Lê Kim Việt Hoàngcute2A2
b1
2/3=8/12
15/20=3/4=9/12
77/66=7/6=14/12
25/50=1/2=6/12
b2
5/8=45/72
20/15=4/3=96/72
24/32=3/4=54/72
15/18=5/6=60/72
77/99=7/9=56/72
k nha hok tốt
a)8/12; 9/12; 14/12; 6/12.
b)45/72; 96/72; 54/72; 60/72; 56/72.
Bai 1 2/3=8/12 bài 2 5/8=45/72
15/20=3/4=9/12 20/15=4/3=96/72
77/66=7/6=14/12 24/32=3/4=54/72
25/50=1/2=6/12 15/18=5/6=60/72
77/99=7/9=56/72
Hoàng ko bình luận linh tinh
bài 1
2/3=8/12
15/20=3/4=9/12
77/66=7/6=14/12
25/50=1/2=6/12.
bài 2
5/8=45/72
20/15=4/3=96/72
24/32=3/4=54/72
15/18=5/6=60/72
77/99=7/9=56/72.
HT