1= 2/3:3/4*3=8/3
2=1/8:5/6:1/3=9/20
3=2/5:6/5*2/3=2/9
Chúc bạn học tốt!
2/3:3/4x3
=2/3x4/3x3
=8/9x3
=24/9
=8/3
=2 2/3
1/8:5/6:1/3
=1/8x6/5:1/3
=6/40:1/3
=6/40x3/1
=18/40
2/5:6/5x2/3
=2/5x5/6x2/3
=10/30(1/3)x2/3
=20/90=10/45=2/9
2/3:3/4x3 8/3 or 2 2/3
1/8:5/6:1/3=9/20
2/5:6/5x2/3=2/9