Common Multiplication
From AoPSWiki
In ordinary arithmetic, multiplication is an arithmetic operation. The result of multiplying is the product. If one of the numbers is a whole number, multiplication is the repeated sum of that number. For example,
. The inverse of multiplication is division.
To multiply fractions, the numerators and denominators are multiplied:
.
Properties
- Commutative property:
- Associative property:
- Distributive property:
- Zero property:
- Identity property:
- Inverse property: For any
,
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