College

Macy was asked to compare the two ratios [tex]\(4:5\)[/tex] and [tex]\(19:30\)[/tex]. Her work is shown below. Which is true?

[tex]\[4:5 \quad ? \quad 19:30\][/tex]

[tex]\[\frac{4}{5} \quad ? \quad \frac{19}{30}\][/tex]

Common denominator is 30.

[tex]\[\frac{24}{30} \ \textless \ \frac{19}{30}\][/tex]

Answer :

To compare the two ratios [tex]\(4:5\)[/tex] and [tex]\(19:30\)[/tex], we need to determine which one is larger. Here's how you can do that step-by-step:

1. Convert the Ratios to Fractions:
The ratio [tex]\(4:5\)[/tex] can be written as the fraction [tex]\(\frac{4}{5}\)[/tex].
The ratio [tex]\(19:30\)[/tex] can be written as the fraction [tex]\(\frac{19}{30}\)[/tex].

2. Find a Common Denominator:
We need to compare these fractions by finding a common denominator. In this case, a common denominator for 5 and 30 is 30.

3. Convert the First Fraction:
To convert [tex]\(\frac{4}{5}\)[/tex] to a fraction with a denominator of 30, we multiply both the numerator and the denominator by 6:
[tex]\[
\frac{4}{5} = \frac{4 \times 6}{5 \times 6} = \frac{24}{30}
\][/tex]

4. Compare the Fractions:
Now, we compare [tex]\(\frac{24}{30}\)[/tex] with [tex]\(\frac{19}{30}\)[/tex].

5. Interpret the Results:
Since [tex]\(\frac{24}{30}\)[/tex] is greater than [tex]\(\frac{19}{30}\)[/tex], it means that the ratio [tex]\(4:5\)[/tex] is greater than the ratio [tex]\(19:30\)[/tex].

Therefore, the ratio [tex]\(4:5\)[/tex] is greater than [tex]\(19:30\)[/tex].