Can I Resize My Windows 7 and OS X 10.11.6 Partition?

Hi there,

• I'm using a 13" MacBook Pro Mid-2012

• I'm running OS X 10.11.6 (as my boot OS) on a 349.9GB partition

• And Windows 7 on a 150GB partition using Bootcamp

My question is, what is the best way to allot more space to my Mac OS partition? Is there a way to do this without having to format my Windows partition and reinstall Windows?

(For those of you wondering, I installed this partition when I was just migrating to OS X and I still had projects to complete on Windows. Now I'd just like to keep it as a get out of jail free card, so I only really need 50-70GB on that Windows partition.)