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Q: How can expressions with the same numbers and operations have different meanings?

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A combination of numbers and operations is called a Numerical Expression.

Arithmetic operations act on the values of numbers or expressions. Logical operations act on the truth-values of statements or equations.

A mathematical phrase containing numbers and operations is called an expression. Expressions can be joined together with an equals sign to form an equation.

Algebraic expressions is a mathematical phrase that contains operations numbers or variables.

How is doing operations (adding, subtracting, multiplying, and dividing) with rational expressions similar to or different from doing operations with fractions?If you know how to do arithmetic with rational numbers you will understand the arithmetic with rational functions! Doing operations (adding, subtracting, multiplying, and dividing) is very similar. When you areadding or subtracting they both require a common denominator. When multiplying or dividing it works the same for instance reducing by factoring. Operations on rational expressions is similar to doing operations on fractions. You have to come up with a common denominator in order to add or subtract. To multiply the numerators and denominators separated. In division you flip the second fraction and multiply. The difference is that rational expressions can have variable letters and powers in them.

Related questions

All expressions combine numbers and operations!

numerical expression

Algebraic expressions is a mathematical phrase that contains operations numbers or variables.

"arithmetical expressions" may be what you are seeking.

They are used to simplify expressions by helping to reduce the numbers that there is

A combination of numbers and operations is called a Numerical Expression.

Arithmetic operations act on the values of numbers or expressions. Logical operations act on the truth-values of statements or equations.

A mathematical phrase containing numbers and operations is called an expression. Expressions can be joined together with an equals sign to form an equation.

They're not. Numbers and the math that manipulates them are fundamentally tools to model and describe the physical world. Thus, mathematics is the language of physics. You might as well ask "How are the words of languages different from the words of the world." regular mathematics uses variables that have different meanings in different expressions and situations than in regular arithmetic expressions.

Algebraic expressions is a mathematical phrase that contains operations numbers or variables.

There are different rules for different operations.

yes!

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