46/66 as a percentage is 69.70%. This number tells you how much of a whole the fraction represents when you look at it on a scale of 100.
The fraction 46/66 can be reduced to 23/33, but the percentage stays the same. Seeing it as a percent makes it easier to compare with other values, like scores or discounts.
In everyday situations, you might round 69.70% to about 70% for quick estimates. This is handy when you need a simple figure without a calculator.
Remember, a percentage always shows the part out of 100, so 69.70% means 69.70 parts out of every 100 parts.