Answer:
A common characteristic of Islam, Christianity and Judaism is that the three are Abrahamic Monoteist religions.
Step-by-step explanation:
The three main Abrahamic religions have certain similarities. All are monotheistic and conceive God as a figure of a transcendent creator and source of moral law, and the characteristics of their sacred narratives share many of the same values, histories, and places, though often presenting them with different functions, perspectives and meanings. They also have many internal differences based on details of doctrine and practice. Christianity is divided into three main branches (Catholic, Orthodox and Protestant), in addition to dozens of significant and small denominations. Islam has two main branches (Sunni and Shiite), each having various denominations. Judaism also has a small number of denominations, of which the most significant are the orthodox, conservative and reformist.