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

Toán Lớp 6: tim UCLN cua can so say .A. 60va72 .b. 150va360

Toán Lớp 6: tim UCLN cua can so say .A. 60va72 .b. 150va360

Comments ( 2 )

  1. A. 60 = 2^2 .3.5
    172=2^3 . 3^2
    UCLN(60,72)=2^2 . 3 = 4.3=12
    b.150=2.3.5^2
    360=2^3 . 3^2 . 5
    UCLN(150,360)=2.3.5=30

  2. Giải đáp + Lời giải và giải thích chi tiết:
    a)
    Ta có:
    60=2^2 .3.5
    72=2^3 .3^2
    =>ƯCLN(60;72)=2^2 .3=12
    b)
    Ta có: 
    150=2.3.5^2
    360=2^3 .3^2 .5
    =>ƯCLN(150;36)=2.3.5=30

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

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