Tìm: c) ƯCLN(a;b)=5 và BCNN(a;b)=50; d) ƯCLN(a;b)=7 và BCNN(a;b)=21

3) c) The greatest common divisor (ƯCLN) of a and b is 5, and the least common multiple (BCNN) of a and b is 50.

d) The greatest common divisor (ƯCLN) of a and b is 7, and the least common multiple (BCNN) of a and b is 21.

4) c) The sum of a and b is 12, and the least common multiple (BCNN) of a and b is 8.

d) The sum of a and b is 16, and the least common multiple (BCNN) of a and b is 28.

e) The difference between a and b is 6, and the least common multiple (BCNN) of a and b is 168.

5) a) The sum of a and b is 432, and the greatest common divisor (ƯCLN) of a and b is 36.

b) The sum of a and b is 125, and the greatest common divisor (ƯCLN) of a and b is 25.

c) The sum of a and b is 105, and the greatest common divisor (ƯCLN) of a and b is 15.

6) a) The product of a and b is 891, and the greatest common divisor (ƯCLN) of a and b is 3.

b) The product of a and b is 125, and the greatest common divisor (ƯCLN) of a and b is 5.

c) The product of a and b is 96, and the greatest common divisor (ƯCLN) of a and b is 4.