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

Toán Lớp 6: ưclm (24,16,80 giúp với mình vote 5 sao

Toán Lớp 6: ưclm (24,16,80 giúp với mình vote 5 sao

Comments ( 2 )

  1. ƯCLN(24; 16; 80)
    24 = 2 . 12 = 2 . 3 . 4 = 2 . 3 . 2 . 2 = 2³ . 3
    16 = 4 . 4 = 2 . 2 . 2 . 2 = $2^{4}$ 
    80 = 4 . 20 = 2 . 2 . 4 . 5 = 2 . 2 . 2 . 2 . 5 = $2^{4}$ . 5
    ⇒ ƯCLN(24; 16; 80) = 2³ = 8.

  2. Ta có:
    24 = 2^3 . 3
    16 = 2^4
    80 = 2^4 . 5
    ƯCLN( 24, 16, 80 ) = 2^3 = 8 

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

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