As a general rule, a percentage can be converted to a decimal fraction by dividing the given percentage by 100%.
63 1/3% is equivalent to 190/3% . Dividing this by 100%, we get 190/300, or 19/30.
63 1/3% of 60 is what? To determine this, multiply 60 by 19/30. That comes out to (60)(19)/30, or 2(19), or 38 (answer).