Geraldine bought some flour. She used $$\frac{1}{7}$$ of the flour to make brownies, $$\frac{1}{14}$$ of it to make cookies and $$\frac{1}{2}$$ of it to make muffins. What fraction of the flour did Geraldine use altogether? Leave your answer in the simplest form. 
Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Finding the Rate