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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 5: 3/5-3/8 =??? Hàng dọc nha ,bài tính

Toán Lớp 5: 3/5-3/8 =???
Hàng dọc nha ,bài tính

Comments ( 2 )

  1. Gửi ak =)) 
    3/5   –  3/8
    = ( 3.8 )/(5.8 ) – ( 3.5 )/ ( 8.5 )  
    = 24/40 – 15/40
    = 9/40  

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222-9+11+12:2*14+14 = ? ( )