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

Toán Lớp 6: TÌm UWCLN (171 ; 225) :LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL

Toán Lớp 6: TÌm UWCLN (171 ; 225)
:LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL

Comments ( 2 )

  1. Giải đáp:
     
    Lời giải và giải thích chi tiết:
     171= $3^{2}$ . 19
    225 = $3^{2}$ . $5^{2}$ 
    ƯCLN (171 ; 225)= $3^{2}$=9
    vậy ƯCLN (171 ; 225)=9

  2. Ta có :
    171 = 3^2 . 19
    225 = 3^2 . 5^2
    ƯCLN(171, 225) = 3^2 = 9
    Vậy ƯCLN(171, 225) = 9

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