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Chapter 4: Problem 1

Specify the numerator and denominator of the following fractions. \(\frac{4}{7}\)

Short Answer

Expert verified
Numerator: 4, Denominator: 7.

Step by step solution

01

Identify the Numerator

The numerator is the top number in a fraction, which represents the number of parts we are considering. In the fraction \(\frac{4}{7}\), the numerator is 4.
02

Identify the Denominator

The denominator is the bottom number in a fraction, which represents the total number of equal parts. In the fraction \(\frac{4}{7}\), the denominator is 7.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Numerator
The numerator is a key part of any fraction, resting proudly on top of the fraction bar. Let's delve deeper into the role and significance of the numerator in fractions. The numerator indicates how many parts of the whole you are focusing on. Consider the fraction \( \frac{4}{7} \); here, the numerator is 4.
  • The numerator tells us that we are considering four equal parts of a larger whole.
  • Imagine you have a pizza cut into 7 slices, if you eat 4 slices, 4 becomes your numerator.
  • The numerator is essential because it provides context to the fraction. Without it, the fraction would be incomplete.
Most importantly, remember the numerator鈥檚 position as the top number and its role in showing how many parts are taken or considered from the whole.
Denominator
Now let's get familiar with what the denominator does. The denominator is the number that sits below the fraction bar. In our example \( \frac{4}{7} \), the denominator is 7.
  • The denominator speaks for the total number of equal parts something has been divided into.
  • If you think of a fraction as a slice of a cake, the denominator would tell you into how many slices the entire cake is divided.
  • Returning to fractions, a denominator of 7 means our whole is divided into 7 equal parts.
Always recall that the denominator must never be zero, as dividing by zero is undefined in mathematics! Keeping these points in mind will help you intuitively understand how fractions work.
Fraction Parts
When dealing with fractions, it's valuable to understand what makes up its "parts". A fraction consists of two parts: the numerator and the denominator. Each plays a distinct role:
  • Numerator: Indicates how many parts we are looking at or concerned with. For example, in \( \frac{4}{7} \), 4 is the numerator.
  • Denominator: Shows into how many equal parts the whole is divided. In the same fraction, the denominator is 7.
Understanding the parts of a fraction helps in a variety of important mathematical tasks.
  • It aids in simplification, where you reduce fractions to their simplest form.
  • You can add, subtract, multiply, or divide fractions accurately when you grasp the role of each part.
  • Being clear about each part is critical for converting between fractions and percentages or decimals.
Grasping these fundamental concepts allows you to tackle any problem involving fractions with confidence.

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Most popular questions from this chapter

For the following problems, determine the missing numerator or denominator. $$\frac{2}{3}=\frac{?}{9}$$

Determine the missing numerator or denominator. $$ \frac{14}{23}=\frac{?}{253} $$

(Section 4.2) Write, in words, \(\frac{4}{5}\).

Reduce, if possible, each fraction. $$\frac{21}{35}$$

(Section 3.6) Find the least common multiple of 28 and 36 .
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