Samuel bought some pies. $$\frac{5}{12}$$ of them were chicken pies and $$\frac{1}{3}$$ of them were mackerel pies. The rest were vegetable pies. <hr> If he bought 15 more chicken pies than mackerel pies how many pies did he buy? <br> <input min="0" type="number" id ="imp6pg050q7b_1" class="lineinput" placeholder="?" />