Examples from the Web for proper fraction Expand. Historical Examples. A proper fraction is ââ than a unit, because it expresses ââ parts than a unit contains.
Sunken eyes mainly appear with aging and can happen due to many reasons. These reasons can be external, like stress and tension, or internal, like lack of sleep, dehydration, and improper diet. This is an aggravated condition of dark circles that makes the underside of eyes look sunken. Most women opt for medical remedies for the improvement of this condition.
Other Causes of Dark Circles. Dark circles under the eyes may be hereditary. Because the skin under the eyes is very thin, when blood passes through the area it can produce a dark color, much like the blue color of your veins. The thinner your skin, the more the circles will be evident. Another cause can be overexposure to the sun. Another much-ignored cause of dark circles is allergies.