Question

the table shows the fraction of the population in selected countries that used cell phones in a recent year. complete the table by writing each fraction as an equivalent fraction with a denominator of 100.

country	fraction of population using cell phones	equivalent fraction with a denominator of 100
country b	9/10	90/100
country c	23/25	92/100
country d	23/25	92/100
country e	16/25	64/100
country f	93/100	93/100
country g	4/5

Explanation:

Step1: Identify the multiplier

To convert a fraction $\frac{a}{b}$ to an equivalent fraction with denominator 100, we find the number $x$ such that $b\times x = 100$, then multiply both the numerator and denominator by $x$. For $\frac{4}{5}$, since $5\times20=100$, the multiplier is 20.

Step2: Multiply numerator and denominator

Multiply the numerator 4 by 20 and the denominator 5 by 20. So, $\frac{4\times20}{5\times20}=\frac{80}{100}$.

Answer:

$\frac{80}{100}$