High School

Which of the following fraction pairs is equivalent?

A. [tex]\(\frac{15}{25}\)[/tex] and [tex]\(\frac{24}{30}\)[/tex]

B. [tex]\(\frac{14}{21}\)[/tex] and [tex]\(\frac{8}{20}\)[/tex]

C. [tex]\(\frac{18}{45}\)[/tex] and [tex]\(\frac{14}{35}\)[/tex]

D. [tex]\(\frac{12}{35}\)[/tex] and [tex]\(\frac{14}{35}\)[/tex]

Answer :

Sure! Let's go through each pair of fractions to see which ones are equivalent. Two fractions are equivalent if they represent the same value, which can be determined by cross-multiplying and checking if the products are equal.

1. Pair: [tex]\(\frac{15}{25}\)[/tex] and [tex]\(\frac{24}{30}\)[/tex]

Cross-multiply:
- [tex]\(15 \times 30 = 450\)[/tex]
- [tex]\(24 \times 25 = 600\)[/tex]

Since 450 ≠ 600, these fractions are not equivalent.

2. Pair: [tex]\(\frac{14}{21}\)[/tex] and [tex]\(\frac{8}{20}\)[/tex]

Cross-multiply:
- [tex]\(14 \times 20 = 280\)[/tex]
- [tex]\(8 \times 21 = 168\)[/tex]

Since 280 ≠ 168, these fractions are not equivalent.

3. Pair: [tex]\(\frac{18}{45}\)[/tex] and [tex]\(\frac{14}{35}\)[/tex]

Cross-multiply:
- [tex]\(18 \times 35 = 630\)[/tex]
- [tex]\(14 \times 45 = 630\)[/tex]

Since 630 = 630, these fractions are equivalent.

4. Pair: [tex]\(\frac{12}{35}\)[/tex] and [tex]\(\frac{14}{35}\)[/tex]

These fractions already have the same denominator, making it easy to compare the numerators:
- 12 ≠ 14

So, these fractions are not equivalent.

Based on this analysis, the equivalent fraction pair is [tex]\(\frac{18}{45}\)[/tex] and [tex]\(\frac{14}{35}\)[/tex], which corresponds to option 3.