37/42 as a percentage is 88.10%. This number tells you that the fraction is just a little short of nine‑tenths, so it’s close to 90 % but not quite there.
The fraction 37/42 can be reduced to a decimal of about 0.881, which is why the percentage ends in .10 after rounding. It’s a handy way to see how much of a whole the fraction represents.
In everyday terms, if you had 42 pieces of something and you owned 37 of them, you would own 88.10% of the total. That’s a strong majority.
Because the percentage is rounded to two decimal places, the exact value might be a tiny bit different, but for most purposes 88.10% is precise enough.