## Basic College Mathematics (10th Edition)

$\frac{13}{100}$ 0.13 13%
13 out of 100 consume the recommended daily amount. Fraction Write the ratio as a fraction and simplify. $\frac{13}{100}$ Decimal Write the ratio as a fraction and divide. To divide by 100 simply move the decimal two places to the left. $\frac{13}{100}$ = 0.13 Percent Write as a proportion and solve for x using cross products. $\frac{13}{100} = \frac{x}{100}$ $100x = 13\times100$ $\frac{100x}{100} = \frac{1300}{100}$ $x = 13$