Jamie-Anne and Natasha both collect stamps. The ratio of the number of Jamie\textquotesingle s stamps and the number of Jamie\textquotesingle s Natasha is $5:3$.  If Jamie-Anne has $18$ more stamps than Natasha, how many stamps do they have in total? 
Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Proportions->Dividing Quantities Based on Ratio