LÀ ƯỚC CHUNG LỚN NHẤT ẤY BẠN CHỈ THIẾU ƯCLN ( DẤU)
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tim hai so tu nhien:
tong cua hai so la 84,UCLN cua chung la 12
tim hai so tu nhien:
tong cua hai so la 84,UCLN cua chung la 12
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 hai so tu nhien khi biet tong cua chung la 84 va UCLN cua chung la 12
Tim hai so tu nhien nho hon 200 biet hieu cua chung la 90 va UCLN cua chung la 15.
tim hai so tu nhien:
hai so nho hon 160,hieu hai so la 65,UCLN cua chung la 13
B1:tim hai so biet:
tong cua BCNN voi UCLN cua chung la 15
B2:tim so tu nhien nho nhat co 3 chu so chia cho 18,30,45;co so du lan luot la 8,20,35.
Tim hai so biet cua chung la 162 va UCLN cua chung la 18
tim 2 so tu nhien nho hon 200, biet hieu cua chung la 90 , UCLN cua chung la 15