Question 819879
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
if Mia is 12 and her sister is 6 1/2 years younger, how old is she?
sister is:  12 - 6<sup>1</sup>&frasl;<sub>2</sub>   ={{{24/2 - 13/2 =  11/2}}} = 5<sup>1</sup>&frasl;<sub>2</sub>years old