33/42 as a percentage is 78.57%. This number tells you how much of a whole 33 parts out of 42 represent, shown as a familiar percent value.
The fraction 33/42 can be reduced to 11/14, which is a little less than three‑quarters (¾). Because it’s close to that common benchmark, the percentage ends up a bit below 75% and lands at the 78.57% mark when expressed in decimal form.
Knowing the percent makes it easy to compare the fraction to other values, whether you’re looking at grades, statistics, or simple everyday ratios. It gives a quick sense of size without needing to think in terms of “parts out of 42.”