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MB
0
2 tháng 12 2016
mình cug nghĩ giống bạn Đoàn Minh Đức vậy đấy
t=540/5 =>t=108
y=540/6=>y=90
còn z thì bạn tự tính nhé!
ND
1
19 tháng 3 2017
Gọi ba số này là x, y,z
Ta có \(\frac{x}{2}=\frac{y}{3}=\frac{z}{5}=k\)
=>\(x=2k,\) \(y=3k,\) \(z=5k\)
BCNN(x,y,z)=1680
=>BCNN(2k;3k;5k)=1680
=>k.BCNN(2,3,5)=1680
=>k=56
=> a=112
b=168
c=280
8 tháng 12 2015
a) goi hai so la a ; b va a >b
vi UCLN(a,b)=18=>a=18k ; b=18q (trong do UCLN (k,q)=1 va k>q)
=>a+b=162
18k+18q =162
18(k+q)=162
k+q=9
| ta co bang sau | |||||||||||||||||||||||
vay ........... | |||||||||||||||||||||||
29 tháng 10 2016
21453
52542000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 | 542454550212.100000000000000000000000000000000000000000000000000000000000000000000000000000 |
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