tim bcnn cua
60va280 84va108 13va15
tim bcnn cua
10,12,15 8,9,11 24,40,168
tim BCNN cua :
60va280
84va108
13va15
BCNN(60, 280)=23.3.5.7=840
BCNN(84, 108)=22.33.7=756
BCNN(13, 15)=3.5.13=195
tim BCNN cua :
10.12,15
8,9,11
24,40,168
10.2=20;
=>BCNN(20,15)={0;60;120;180;240;..}
BCNN(8,9,11)={0;88;176;264}
tim bcnn cua
10,12,15
8,9,11
24,40,168
1) Ta có: 10 = 2.5
12 = 22.3
15 = 3.5
=> BCNN(10;12;15) = 22.3.5 = 60
2) Do 8;9;11 nguyên tố cùng nhau từng đôi một => BCNN(8;9;11) = 8.9.11 = 792
3) Ta có: 24 = 23.3
40 = 23.5
168 = 23.3.7
=> BCNN(24;40;168) = 23.3.5.7 = 840
BCNN(10,12,15) là:
10=2.5
12=22.3
15=3.5
=>BCNN(10,12,15)=22.3.5=60
BCNN(8,9,11):
8=23
9=32
11=11
=>BCNN(8,9,11)=23.32.11=792
BCNN(24,40,168):
24=23.3
40=23.5
168=23.3.7
=> BCNN(24;40;168)=23.3.5.7=840
BCNN(10,12,15) là:
10=2.5
12=22.3
15=3.5
=>BCNN(10,12,15)=22.3.5=60
BCNN(8,9,11):
8=23
9=32
11=11
=>BCNN(8,9,11)=23.32.11=792
BCNN(24,40,168):
24=23.3
40=23.5
168=23.3.7
=> BCNN(24;40;168)=23.3.5.7=840
Tim BCNN cua
a} 10,12,15 b}8,9,11 c}24,40,168
a)10 = 2*5; 12 = 22 *3; 15 = 3*5
BCNN(10, 12, 15) = 22 *3*5 = 60
b) 8 = 23; 9 = 32; 11 = 11
BCNN(8, 9, 11) = 8*9*11 = 792
c) 24 = 23 *3; 40 = 23 *5; 168 = 23 *3*7
BCNN(24, 40, 168) = 23 *3*5*7 = 840.
a) 10 = 2 . 5, 12 = 22 . 3, 15 = 3 . 5. BCNN (10, 12, 15) = 22 . 3 . 5 = 60;
b) BCNN (8, 9, 11) = 8 . 9 . 11 = 792;
c) Ta có 24 = 23 . 3, 40 = 23 . 5, 168 = 23 . 3 . 7.
BCNN (24, 40, 168) = 23 . 3 . 5 . 7 = 840.
Tim BCNN cua
A) 10,12,20 b)8,9,11 c)24,40,168
A/ BCNN(10,12,20)
10 = 2.5
12 = 22.3
20 = 22.5
BCNN(10,12,20) = 22 = 4
B/ BCNN(8,9,11)
8 = 23
9 = 32
11 = 11
BCNN(8,9,11) = 1
C/ BCNN(24,40,168)
24 = 23.3
40 = 23.5
168 = 23.3.7
BCNN(24,40,168) = 23 = 8
Nhớ tick nhak bạn !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Bạn Pé Đào giải đúng rồi đấy bạn ạ
tim bcnn cua 24,40,168
Phân tích :
24 = 23 . 3
40 = 23 . 5
168 = 23 . 3. 7
=> BCNN(24;40;168) = 23 . 3 . 5 . 7 = 840
tìm bcnn của:
10,12,15 8,9,11 24,40,168
ai nhanh mình tik nhớ kb
10;12;15
10=2.5
12=2^2.3
15=3.5
bcnn(10;12;15)=2^2.3.5=60
8;9;11
bcnn(8;9;110)=8.9.11=792
vì 3 số là số nguyên tố cùng nhau
24;40;168
20=2^2.5
40=2^3.5
168=2^3.3.7
bcnn(24;40;168)=2^3.5.7=280
10=2.5
12=22.3
15=3.5
BCNN:4.3.5
8;9;11
vi 3 so deu la so nguyen to nen
BCNN:8.9,11=792
24;40;16
24=23.3
40=23.5
168=2.2.2.3.7
UCLN:23.3=24
TSR=5.7
BCNN:24.5.7=4200
10=2.5
12=22.3
15=3.5
=>BCNN(10,12,15)=22.3.5=15
8=23
9=32
11=11
=>BCNN(8,9,11)=23.32.11=792
24=23.3
40=23.5
168=23.3.7
=>BCNN(24,40,168)=23.3.5.7=840
Tìm BCNN của:
a,10,12,15; b,8,9,11; c,24,40,168
a, Ta có : 10=2.5
12=2^2 . 3
15=3.5
=> BCNN(10,12,15)=2^2.3.5=60
b, Ta có : 8 = 2^3
9 = 3^2
=>BCNN(8,9,11)=2^3 . 3^2 . 11 = 792
c, Ta có : 24=3. 2^3
40=2^3.5
168=2^3 .3.7
=>BCNN(24,40,168)=2^3 . 3.5.7=840
Tìm BCNN của:
a).10,12,15 b).8,9,11 c).24,40,168
Giup vs nạ.... :3