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Question 1065922: What is the property of 7/9*1=7/9
Answer by KMST(5328)   (Show Source):
You can put this solution on YOUR website! Multiplying the number  times  you get the number .
The same happens with any whole number, any integer, any rational number, any number of whatever kind you know about.
In your class it may be called "Multiplicative Identity" property,
or "Identity Property of Multiplication", or some such thing.
Unfortunately, different people call it slightly different names.
When you take any number, and you multiply it times ,
the result is identical to the number you started with.
The number is the identity element (number) for multiplication.
The number  is the identity element (number) for additions,
because you can add to any number, and you get the number you started with.
Math people like that, and in fancy math courses the same ideas get generalized to more abstract applications, with more words to remember,
but whatever they call a set, its elements, and the operations,
when you have a set of elements
(like the rational numbers, for example),
and you define an operation that can be done with two elements of that set,
it is cool to have an identity element.
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