There are many options for you. Here list two of them:
1.
Medieval CUE SplitterCUE Splitter is a freeware tool that splits a single big audio file, mostly an album or a compilation, into the relative independent audio tracks, using the informations stored in its associated .CUE file; without decoding/re-encoding the data stream!!!
2. However, Medieval CUE Splitter is a Windows-based tool and there is still no plan for developing the Mac version. If you insist to run Medieval CUE Splitter on Mac, you need to spend $249 to get VMware Workstation Virtual machine which will allow you run Medieval CUE Splitter on Mac.
In this case, you may prefer to this step by step guide on
how to Split FLAC, MP3, WAV, APE, etc.
Hope it will help you more or less.