Answer:
-125/462
Step-by-step explanation:
This is my answer... hope it really helps you
3/7+(-6/11)+(-8/21)+(5/22)
3/7-6/11-8/21+5/22
now we need to take LCM for 7,11,21,22
so the LCM=462
198-252-176+105/462
303-428/462
