# Rational.Multiply Operator

**Solver Foundation 3.0**

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Returns the product of two rational numbers.

**Namespace:**Microsoft.SolverFoundation.Common

**Assembly:**Microsoft.Solver.Foundation (in Microsoft.Solver.Foundation.dll)

#### Parameters

- rat1
- Type: Microsoft.SolverFoundation.Common.Rational

A rational value.

- rat2
- Type: Microsoft.SolverFoundation.Common.Rational

Another rational value.

- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

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