甲、乙、丙、丁四人共同生产一批零件，甲生产的占其他三人生产总数的2/13，乙生产的占其他三人生产总数的1/4，丙生产的占其他三人生产总数的4/11.已知丁生产了60个，甲、乙、丙、丁各生产零件多少个？

推荐阅读：
Tanzania Plagued By Censorship, Offers Journalists A Course On D　 Young Cancer Patient Has Decided To Live-Blog His Health’s Decli　 How a CDN can be your Blog’s Secret Weapon　 Why Wasted Words Kill Good Ideas And Cost Sales　 Why You Need Niche Experience to Be a Great Blogger　 The Art of the Perfect Listicle　 Tools and Resources to Help Create Your Next Content Calendar　 5 Tips for Capturing More Leads on Your Blog　 Don’t Fall Victim to the Content Overproduction Trap　 Are You Taking Advantage Of These Free WordPress Marketing Plugi