That's a common denominator.
That's the least common denominator.
least common denominator
the common denominator!
the least common denominator
common multiple
a common denominator
That's the least common denominator or LCD.
The least common multiple of two or more denominators is known as the least common denominator, or LCD.
That's known as the least common denominator.
It is possible that A has such properties.
Common denominators are common multiples of two or more denominators.
Common denominators are common multiples that are being used as denominators.