Hey there!
To figure out the decimal of 7/33, just divide the numerator by the denominator. The numerator is the top part of the fraction. The denominator is the bottom part of the fraction.
So, 7 ÷ 33 = 0.212121.....
We can write this as 0.21 with a bar on top of 21. This shows that 21 is recurring.
Thank you! :D