Belief in one God. They share Abraham (Ibrahim) as the father of their religion(s). Many prophets are revered in all three religions. Christians and Muslims believe that Jesus (Eesa or Isa) was the Messiah. Islam does not believe that Jesus was the son of God, however. Islam believes that Mohammad was the last prophet. Muslims believe that Jesus was sent to the children of Israel, but Mohammad was sent for all of mankind.
All three revere Jerusalem as a holy city, Jews and Christians as the holiest city, Muslims as third holiest (next to Mecca and Medina).
Islam, Judaism and Christianity.
Which one of the following elements is common to Judaism, Christianity, Islam, and Zoroastrianis
Both Islam and Christianity originated out of Judaism.
Abraham.
The common ancestor of the three religions Judaism, Christianity and Islam was Abraham
Judaism, Christianity, and Islam have all claimed the Holy Land for themselves.
they are all Monotheistic Religions.
Judaism, Christianity, and Islam religions.
For Judaism and Christianity it is Jerusalem. For Islam it is Mecca.
-- Islam -- Judaism -- Christianity
Christianity and Judaism
Judaism and Christianity have the bulk of the old testament in common. However Islam draws some of its source material from biblical stories but re-interprets it, so it does not have anything in common in terms of the bible.