15/25+5=28/5
3/2-4/8=1
2/9 x 5=10/9
6/7 : 3/4 =8/7
15/25+5=137/25
3/2-4/8=1
2/9 x 5=10/9
6/7 : 3/4 =8/7
HT
15/25+5=5.6
3/2-4/8=1
2/9 x 5=1.11111111111111
6/7 : 3/4 =1/14
15/25 + 5 = 28/5
3/2-4/8=1
2/9 x 5 =10/9
6/7 : 3/4 = 8/7
chúc bn học tốt nheeeee:3333