33/42 is equal to 78.57% when you turn the fraction into a percentage.
The fraction 33/42 can be reduced to 11/14, which is still the same amount. Whether you look at it as 33 parts out of 42, or 11 parts out of 14, the value stays the same, and it represents roughly three‑quarters of a whole.
In everyday situations, thinking of 78.57% can help you compare sizes, scores, or portions quickly. It tells you that the fraction is a little less than 80% of the total, making it easy to estimate and understand without doing any math.