Question

If Jewish and Islamic are most likely, why do Christians and Islam are different?

Answer 1

Muslims and Christians are not that different it just happened that the beleifs of their ancestors are different. If just dig and evaluate the learnings of the two Religions we will discover.

Answer 2

I think tehre is not much difference. All they follow similar rules, with smasll differences, the most notable differences is the name of their respective prophet, but this is the main difference, this totally change the perception.