d

a)  2\6 + 8\9= b) 7\24 +5\48 =  c) 4 + 11\3  =     d) 31\10 + 3 = 

I used the Facebook app on my smartphone recently
2I am interested in entertainment applications such as watching movies, playing games, or social networks,...
3 The first mobile app that I downloaded and tried was TikTok
4I want to use applications related to learning and looking up information effectively in the future

A) 3\4-2\7  B) 3\8 - 5\16  C) 7\5 - 2\3  D)31\36 -5\6 

chọn B nha 

a) 20\16 - 3\4     b) 30\45 - 2\5   

  c) 10\12 -3\4    d)12\9 -1\4