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biet rang BCNN(a,b).UCLN(a,b)=a.b
a, tong cua hai so bang 60,tong giua UCLN va BCNN cua chung la 84 tim hai so do
tim 2 so tu nhien a va b biet rang BCNN;UCLN bang 15
Biet rang : BCNN(a,b).UCLN(a,b)
a, BCNN cua hai so la 600, UCLN cua chung nho hon 10 lan BCNN. So thu 1 la 120, tim so thu 2.
b, UCLN cua hai so la 12, BCNN cua chung lon gap 6 lan UCLN . So t 1 la 24, tim so t 2
c, Tong cua hai so bang 60, tong giua UCLN va BCNN cua chung la 84. Tim hai so do.
Tim 2 so biet tong UCLN va BCNN cua chung bang 23.
Tim 2 so biet ucln va bcnn cua chung co tong bang 19?
Tim 2 so tu nhien biet tong UCLN va BCNN cua chung bang 23.
tim 2 so tu nhien biet rang UCLN cua chung bang 10 va BCNN cua chung bang 900
tim hai so tu nhien a va b{a>b} co tong bang 224,biet rang UCLN cua chung bang 28
tim 2 so ava biet TONG CUA BCNN va UCLN CUA CHUNG LA 15
