Question

BCNN(18, 15, 10)

BCNN( 15, 12, 18)

 

Answer 1

\(BCNN\left(18,15,10\right)=90\)

\(BCNN\left(15,12,18\right)=180\)

Answer 2

Bcnn(18,15,10)=90

Bcnn(15,12,18)=180

Answer 3

Ta có :

18 = 2 . 3² 

15 = 3 . 5

10 = 2 . 5

=> BCNN ( 18 ; 15 ; 10 ) = 2 . 3² . 5 = 90

Ta có :

15 = 3 . 5

12 = 2² . 3

18 = 2 . 3²

=> BCNN ( 15 ; 12 ; 18 ) = 2² . 3² . 5 = 180

Answer 4

18=2.3^2

15=3.5

10=2.5

BCNN(18,15,10)=2.3^2.5=90

BCNN(15,12,18)

15=3.5

12=2^2.3

18=2.3^2

BCNN(15,12,18)=2^2.3^2.5=180

đó dấu"." là daaus 'x' nha

Answer 5

BCNN(18,15,10)= 2.3^2.5=90

(18=2.3^2; 15=5.3; 10= 2.5)

BCNN(15,12,18)= 3^2. 5 . 2^2= 180

(15= 3.5; 12= 3.2^2; 18= 2.3^2)

Học tốt!

@Hàn_Y_Tịnh__

Answer 6

Ta có:18=2.3^2

15=3.5

10=2.5

BCNN(18;15;10)=2.3^2.5=90

Ta có :15=3.5

12=2^2.3

18=2.3^2

BCNN(15;12;18)=2^2.3^2.5=180

Answer 7

BCNN{18, 15, 10}

ta có:

18=2.3²

^15=3.5

^10=2.5

suy ra BCNN{18;15;10}=3².2.5=120

vậy BCNN{18;15;10}là 120

BCNN{15,12,18}

ta có

15=3.5

12=2².3

18=2.3²

suy ra BCNN{15,12,18}=3².2².5=180

vậy BCNN{15,12,18}là 180

K NHA