3/42 as a percentage is 7.14%. This is the rounded value you get when you express the fraction as a part of a whole.
The fraction 3/42 can be simplified to 1/14, which still represents the same portion of a whole. Whether you write it as 3/42, 1/14, or 7.14%, the meaning stays consistent: a small slice of the total.
You might see this percentage when dealing with small discounts, test scores, or data sets. Knowing that 7.14% is the same as 3 out of 42 helps you compare fractions and percentages quickly.