1) Ta có: 72 = 23.32
48 = 24.3
=>BCNN(72;48) = 24.32 = 144
2) Ta có: 20 = 22.5
48 = 24.3
=> UCLN(20;48) = 22=4
72 = 23. 32 ; 48 = 24 . 3
1. BCNN ( 72, 48 ) = 24 . 32 = 144
Câu 2 tương tự nha
1 .
Ta có :
48 = 24 . 3
72 = 23 . 32
=> BCNN ( 72,48 ) = 24 . 32 = 144
2 .
Ta có :
20 = 22 . 5
48 = 24. 3
=> ƯCLN ( 20 ; 48 ) = 22 = 4
1.
72=2^3.3^248=2^4.3BCNN(72:48)=2^4.3^2=144
2.
20=2^2.548=2^4.3ƯCLN(20:48)=2^2=4
1.BCNN(72;48)
Ta có 72 = 23.32
48 = 24.3
BCNN(72;48) = 24.32= 144
2.ƯCLN(20;48)
Ta có 20 = 22.5
48 = 24.3
ƯCLN(20,48) = 22 = 4
e hoc UCLN va BCNN la ra thoi ma . de nhu an chao ma con dang .
