1/2 can be equal to 3/6 because in both cases, the fractions equal 50%, or half of 1. No matter what the fraction's denominator (The bottom number) is, as long as the Numerator (The top number) is exactly half of the denominator, the fraction will be equal to 1/2.
a whole
1half+1half 3quarters+1quarter
150%
3
0.3333
0.5
4
179
9
No
6 1/2
One half = ½ = 0.5