Which Expression Is Equivalent To The Following Complex Fraction

Complex fractions are a bit intimidating for many students, but they don’t have to be. In this article, we’ll break down a complex fraction and show you which expressions are equivalent to it. By the end of this article, you’ll have a better understanding of complex fractions and how to simplify them.

Understanding Complex Fractions

Before we dive into which expressions are equivalent to complex fractions, let’s first understand what a complex fraction is. A complex fraction is a fraction where either the numerator, denominator, or both contain fractions themselves. For example, a complex fraction can look like this:

\frac{3}{4} + \frac{\frac{1}{2}}{\frac{2}{3}}

In this example, we have a fraction in the numerator (\frac{3}{4}) and a fraction within a fraction in the denominator (\frac{\frac{1}{2}}{\frac{2}{3}}).

Simplifying Complex Fractions

Complex fractions can look intimidating, but simplifying them is not as difficult as it seems. One method to simplify complex fractions is to convert them into a single fraction by getting rid of the fractions within the fractions. Let’s take the example mentioned earlier:

\frac{3}{4} + \frac{\frac{1}{2}}{\frac{2}{3}}

To simplify this complex fraction, we can proceed as follows:

1. Convert the fractions within the fractions to a single fraction.
2. Then, we can use the division of fractions rule to simplify it further.

The steps would be as follows:

\frac{3}{4} + \frac{\frac{1}{2}}{\frac{2}{3}} = \frac{3}{4} + \frac{1}{2} \div \frac{2}{3}

Equivalent Expressions for Complex Fractions

Now that we understand how to simplify complex fractions, let’s look at which expressions are equivalent to a given complex fraction. The key is to manipulate the complex fraction to a form that is easier to work with. Let’s take a look at an example:

Given the complex fraction:

\frac{10}{7} + \frac{\frac{4}{5}}{\frac{8}{3}}

We want to find an expression that is equivalent to this complex fraction. One approach we can take is to convert the complex fraction into a single fraction by finding a common denominator for the fractions within the fractions.

First, let’s convert the fractions in the denominator to a single fraction:

\frac{10}{7} + \frac{\frac{4}{5}}{\frac{8}{3}} = \frac{10}{7} + \frac{4}{5} \div \frac{8}{3}

Now, we’ll use the division of fractions rule to convert the division of fractions into multiplication by taking the reciprocal of the divisor:

\frac{10}{7} + \frac{4}{5} \div \frac{8}{3} = \frac{10}{7} + \frac{4}{5} \times \frac{3}{8}

Next, we’ll find a common denominator for the fractions in the numerator in order to combine them into a single fraction:

\frac{10}{7} = \frac{10 \times 5}{7 \times 5} = \frac{50}{35}

\frac{4}{5} \times \frac{3}{8} = \frac{4 \times 3}{5 \times 8} = \frac{12}{40}

Now that we have a common denominator for the fractions, we can combine them into a single fraction:

\frac{50}{35} + \frac{12}{40}

We can then find a common denominator for the fractions and add them together:

\frac{50}{35} + \frac{12}{40} = \frac{50 \times 8}{35 \times 8} + \frac{12 \times 7}{40 \times 7} = \frac{400}{280} + \frac{84}{280} = \frac{484}{280}

So, the expression equivalent to the complex fraction:

\frac{10}{7} + \frac{\frac{4}{5}}{\frac{8}{3}}

is:

\frac{484}{280}

Key Points to Remember

– Complex fractions are fractions where either the numerator, denominator, or both contain fractions themselves.
– To simplify complex fractions, convert them into a single fraction by getting rid of the fractions within the fractions using the division of fractions rule.
– Finding equivalent expressions for complex fractions involves manipulating the given complex fraction to a form that is easier to work with, such as finding a common denominator or using the division of fractions rule.

Overall, understanding how to simplify and find equivalent expressions for complex fractions can be a valuable skill in algebra and higher-level mathematics. With practice, you can become more comfortable working with complex fractions and expressing them in different forms.

In conclusion, complex fractions can be simplified and expressed in equivalent forms by following a few key rules and methods. With practice and understanding, you can master complex fractions and confidently manipulate them to find equivalent expressions.

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