#### Answer

fraction = decimal = percent
$\frac{3}{8}$ = 0.375 = 37.5%
$\frac{9}{20}$ = 0.45 = 45%
$\frac{9}{50}$ = 0.18 = 18%
1$\frac{2}{5}$ = 1.4 = 140%
1$\frac{2}{25}$ = 1.08 = 108%
$\frac{67}{400}$ = 0.1675 = 16$\frac{3}{4}$%

#### Work Step by Step

ANSWER 1.
Step 1.
Fraction to decimal: To change a fraction we divide the numerator by the denominator
so, the fraction $\frac{3}{8}$ has 3 as a Numerator and 5 as a denominator
therefore we divide 3 by 8.
$\frac{3}{8}$ = 0.375
which gives us 0.375 as the division answer
Step 2.
Decimal to Percent: To put a decimal into percent we multiply the decimal by 100 or Simply shift the decimal place two places to the right.
0.375 = 37.5%
which gives us 37.5% as the percent.
hence, (fraction) $\frac{3}{8}$ = (Decimal) 0.375 = (Percent) 37.5%
ANSWER 2.
Here we have been given a decimal 0.45 which we need to convert to Fraction and Percent
Step 1.
Decimal to Percent: To put a decimal into percent we shift the decimal place two places to the right.
0.45 = 45%
Step 2.
Percent to Fraction: a percent is simply a fraction multiplied by 100 so to get the fraction we divide the Percent by 100.
45% = 45 $\times$ $\frac{1}{100}$ = $\frac{45}{100}$ = $\frac{9}{20}$
SO 45% = $\frac{45}{100}$ = $\frac{9}{20}$ in the simplest form.
hence, (fraction) $\frac{9}{20}$ = (Decimal) 0.45 = (Percent) 45%
ANSWER 3.
Here we have been given 18% which we need to convert to Decimal and Fraction.
Step 1.
Percent to Decimal: simply shift decimal point two places to the left
18% = 0.18
which gives us 18% = 0.18 as the decimal
Step 2.
Decimal to Fraction: to convert decimal into the fraction we Divide the decimal by 100. and get numerator and the denominator to their simplest form.
0.18 = $\frac{18}{100}$ = $\frac{9}{50}$
which gives us 0.18 = $\frac{9}{50}$
hence, (fraction) $\frac{9}{50}$ = (Decimal) 0.18 = (Percent) 18%