For example, in the fraction 3/4, the numerator, 3, tells us that the fraction represents 3 equal parts, and the denominator, 4, tells us that 4 parts make up a whole. The picture to the right illustrates 3 4 {\displaystyle {\tfrac {3}{4}}} or Â¾ of a cake.
The Causes of Sunburn Blisters. Sunburn blisters are a result of overexposure to the UVA and UVB rays in the sun. â¢ UVA. These harmful rays penetrate deep into the bottom skin layers and damage the production of new skin cells. High doses of UVA rays will cause sunburn blisters.
Sunburns sometimes cause skin blisters. Photo Credit Ralf Nau/Lifesize/Getty Images. Skin blisters typically appear as circular, raised areas of fluid that collect underneath the top layer of your skin. The fluid, called serum, is usually clear to yellow in color and comes from your damaged blood vessels. Blisters develop to protect damaged skin from further harm.