Tim a,b thuoc N* biet a+b = 24 va UCLN(a,b) =56
tim (a,b) thuoc n*biet;b ,a/b=4/5 va BCNN=140 ;; a+b=128 va UCLN =16
tim phan so a/b biet:
a/b = 34/14 va a+b = 96, (a,b thuoc n sao)
1. Tim a,b thuoc so tu nhien
a. Bcnn(a,b) = 40; ucln =10
b. a - b = 48 , ucln = 12 va 10<a,b<100
c. a x b = 180, ucln = 6
d. ax b = 216, ucln = 6
e. a + b = 128, ucln = 16
2. tim ucln voi n thuoc so tu nhien (ghi cach trinh bay)
14n + 3 va 21n+ 4
tim a,b€N .a+b=96 va UCLN cua a,B =6
giai giup minh nhe
bai 1 a )tim ucln(6n+3,6n+9)
b)tim ucln (2n-1;9n+4)
bai2 tim a;b thuoc n biet
bcnn(a;b)=240
ucln(a;b)=16
bai 3 tim so chia va thuong cua 1 phep chia biet so bi chia la 145 du 12 thuong # 1
tim a,b thuoc N biet BCNN(a,b)+UCLN(a,b)=14
tim a,b thuoc N biet BCNN(a,b)+UCLN(a,b)=14
tim A,B thuoc N biet A.B =252va UCLN (A,B)=(2)