Các câu hỏi tương tự
tim phan so a/b bang phan so 18/27 biet rang ucln(a,b)=13
tim phan so \(\frac{a}{b}\)phan so \(\frac{45}{125}\)va UCLN(a;b)=11
tim \(\frac{a}{b}\)
tim phan so a/b bang phan so 18/27, biet rang ucln (a,b) 13
bang
tim phan so a/b biet a/b=21/35 va ucln (a,b)=20
Cho phan so a/b
a, =45/54 va UCLN= 12
Tim x
a, tim cac so nguyen x,y sao cho y/3 - 1/x = 1/3
b,tim cac so a va b biet a - b =5 va UCLN (a,b)/BCNN (a,b) =1/6
Luu y a/b tua la a phan b
tim 2 so tu nhien a va b (a>b),biet rang a+b=270 va UCLN(a,b)=45
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 phan so a/b thoa man dieu kien 4/7 < a/b < 2/3 va 7a + 4b = 1994