There are 36 small squares total.
12 of the squares are shaded.
The ratio would be the number of shaded over the total number:
12 / 36 which can be reduces to 1/3
To find the percent, divide 1 by 3 and then multiply by 100:
1 / 3 = 0.333
0.333 * 100 = 33.3%
The answer is 1/3, 33.3%
