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State whether each inequality is true or false. (a) \(\frac{10}{2} \geq 5\) (b) \(\frac{6}{10} \geq \frac{5}{6}\)

Short Answer

Expert verified
(a) True, (b) False.

Step by step solution

01

Analyze Inequality (a)

The inequality provided is \( \frac{10}{2} \geq 5 \). Start by calculating \( \frac{10}{2} \). This simplifies to \( 5 \). Therefore, the inequality becomes \( 5 \geq 5 \), which is true as both sides are equal.
02

Analyze Inequality (b)

The inequality given is \( \frac{6}{10} \geq \frac{5}{6} \). To compare these fractions, find a common denominator or convert them to decimal form. \( \frac{6}{10} \) simplifies to 0.6. \( \frac{5}{6} \) converts to approximately 0.8333. Since 0.6 is not greater than or equal to 0.8333, the inequality is false.

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Key Concepts

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

Fraction Simplification
Fraction simplification is a method to make fractions easier to work with by reducing them to their simplest form. To simplify a fraction, we divide its numerator and denominator by their greatest common divisor (GCD). For example, considering the fraction \( \frac{10}{2} \), both 10 and 2 can be divided by 2. Thus, the simplified fraction becomes \( \frac{5}{1} \), or simply 5.
  • Determine the GCD of the numerator and denominator.
  • Divide both numerator and denominator by their GCD.
Simplifying fractions can make complex math problems more manageable and easier to solve. It’s a useful skill for comparing fractions or solving equations where precise understanding of values is crucial. This also helps in recognizing whether expressions or inequalities are true by reducing unnecessary complexity.
Comparing Fractions
When comparing fractions, it’s important to assess which is larger or if they are equal. This can involve finding a common denominator or converting the fractions to decimals for a quick comparison.To compare fractions with different denominators, like \( \frac{6}{10} \) and \( \frac{5}{6} \), it's often easiest to convert them to decimals:
  • \( \frac{6}{10} \) becomes 0.6
  • \( \frac{5}{6} \) approximately becomes 0.8333
By comparing 0.6 and 0.8333, it's clear that 0.6 is less than 0.8333, making \( \frac{6}{10} \) less than \( \frac{5}{6} \). Alternatively, finding a common denominator would require converting each fraction such that their denominators match, a more complex but exact method.
  • First, find the least common denominator (LCD) of the fractions.
  • Convert each fraction to have this common denominator.
  • Compare the numerators since the denominators are now the same.
Using these methods ensures accurate comparison, which is essential in confirming the truth of mathematical inequalities.
Decimal Conversion
Converting fractions to decimals can simplify many operations, such as comparing sizes or performing mathematical calculations. This process involves dividing the numerator by the denominator using long division or a calculator.For example, converting \( \frac{6}{10} \) to decimal form is straightforward. Here, 6 divided by 10 results in 0.6. Similarly, \( \frac{5}{6} \) involves dividing 5 by 6, which results in approximately 0.8333.
  • Identify the numerator and denominator.
  • Divide the numerator by the denominator.
  • Round off the quotient if necessary for easier comparison.
Using decimal conversion, you can quickly compare numbers, calculate complex equations, and understand the relationships between different values. This method is particularly useful when dealing with inequalities, as decimal numbers can be effortlessly ordered by magnitude.

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