Ta có:
\(20=2^2.5\)
\(40=2^3.5\)
\(60=2^2.3.5\)
=> \(BCNN\left(20;40;60\right)=2^3.3.5=120\)
Vậy \(BCNN\left(20;40;60\right)=120\)
BCNN(20,40,60)là 120
Ta có: 20=2^2.5
40=2^3.5
60=2^2.5.3
=> BCNN(20,40,60)= 2^3.5.3=120
20=\(2^2\cdot5\)
40=\(2^3\cdot5\)
60=\(2^2\cdot3\cdot5\)
=>BCNN(20;40;60)=\(2^3\cdot3\cdot5=120\)
Ta có:
\(20=2^2.5\)
\(40=2^3.5\)
\(60=2^2.3.5\)
\(\Rightarrow BCNN_{\left(20;40;60\right)}=2^3.3.5=120\)
Ta có:
20 = 22 . 5
40 = 23 . 5
60 = 22 . 3 . 5
=> BCNN ( 20; 40; 60 ) = 23 . 3 . 5 = 120
Ta có:
\(20=2^2.5\)
\(40=2^3.5\)
\(60=2^2.3.5\)
Suy ra: \(BCNN\left(20,40,60\right)\)\(=2^2.3.5=120\)
Hok tốt !
20=2^2.5
40=2^3.5
60=2^2.3.5
BCNN(20,40,60)=2^3.3.5=120
