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

Toán Lớp 6: Tìm BCNN của các số sau a) 8, 13, 15 b) 24, 10, 16 c) 180, 250, 320 d) 75, 205, 105 e) 40, 88 , 35 ,

Toán Lớp 6: Tìm BCNN của các số sau
a) 8, 13, 15 b) 24, 10, 16 c) 180, 250, 320 d) 75, 205, 105
e) 40, 88 , 35 , 66 g) 35, 40, 210 h) 72, 48, 96 i) 36, 60 , 48

Comments ( 2 )

  1. Giải đáp đây nha
    nhớ cho mình 5 sao nhaaaaaaaaaa
     

    toan-lop-6-tim-bcnn-cua-cac-so-sau-a-8-13-15-b-24-10-16-c-180-250-320-d-75-205-105-e-40-88-35

  2. a)8=2^3
    13=13
    15=3.5
    BCNN(8;13;15)=2^3. 3.5.13=1560
    b)24=2^3. 3
    10=2.5
    16=2^4
    BCNN(24;10;16)=2^4. 5.3=240
    c)180=2^2. 3^2. 5
    250=2.5^3
    320=2^6. 5
    BCNN(180;250;320)=2^6. 5^3. 3^2=72000
    d)75=3.5^2
    205=5.41
    105=3.5.7
    BCNN(75;205;105)=3.5^2. 41.7=21525
    e)40=2^3. 5
    88=2^3. 11
    35=5.7
    66=2.3.11
    BCNN(40;88;35;66)=2^3. 3.5.7.11=9240
    g)35=5.7
    40=2^3. 5
    210=2.3.5.7
    BCNN(35;40;210)=5.7.3.2^3=840
    h)72=2^3. 3^2
    48=2^4. 3
    96=2^5. 3
    BCNN(72;48;96)=2^5. 3^2=288
    i)36=2^2. 3^2
    60=2^2. 3.5
    48=2^4. 3
    BCNN(36;60;48)=2^4. 3^2. 5=720

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

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