Least common denominator is the smallest number that can be divided by both given denominators.
From the problem, we have :
The denominators are 6 and 2.
The smallest number that can be divided by 6 and 2 is 6.
6/6 = 1 and 6/2 = 3
So we need an equivalent fraction with a denominator of 6.
For 5/6, multiply this by 1/1 since the denominator is already 6.
For 1/2, multiply this by 3/3 to make the denominator equal to 6.