https://www.quikrete.com/athome/video-repairing-sealing-cracks.asp?gclid=COzovJCA8dMCFd6Pswod-xgDSw
https://www.handymanhowto.com/how-to-repair-a-cracked-concrete-patio-part-1/
https://www.youtube.com/watch?v=y1rOtvvxRzY
You can use a crack filler to fill it.
Alternatively you may find some of the comment in this similar discussion helpful-
http://www.hometalk.com/diy/repair/home-exterior/q-is-there-anyway-to-fix-a-covered-concrete-patio-that-has-some-cracks-29011825
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My husband filled the cracks with something and now it looks worse. How do I fix these cracks in my concrete patio?
https://www.quikrete.com/athome/video-repairing-sealing-cracks.asp?gclid=COzovJCA8dMCFd6Pswod-xgDSw
https://www.handymanhowto.com/how-to-repair-a-cracked-concrete-patio-part-1/
https://www.youtube.com/watch?v=y1rOtvvxRzY
You can use a crack filler to fill it.
Alternatively you may find some of the comment in this similar discussion helpful-
http://www.hometalk.com/diy/repair/home-exterior/q-is-there-anyway-to-fix-a-covered-concrete-patio-that-has-some-cracks-29011825
Is there anyway to fix a covered concrete patio that has some cracks ?