Fractions, decimals, and percents are three ways to show parts of a whole. We want to write a fraction as a decimal and as a percent. Let's do these things one at a time.
We found that 1720 expressed as a decimal is 0.85.
Writing a Fraction as a Percent
To write a fraction as a percent, we first find an equivalent fraction with a denominator of 100.
17/20=x/100
We multiply 20 by 5 to get 100, so we will also multiply 17 by 5 to get an equivalent fraction.
We found that 1720 and 85100 are equivalent fractions. Now we can write the new fraction as a percent by looking at the numerator and adding a percent symbol.
17/20=85/100= 85 %
