Solve 18-4%-3%-10%-15%

$$18-4 \% -3 \% -10 \% -15 \%$$

Evaluate

$$\frac{442}{25}=17.68$$

Solution Steps

Reduce the fraction \frac{4}{100} to lowest terms by extracting and canceling out 4.

$$18-\frac{1}{25}-\frac{3}{100}-\frac{10}{100}-\frac{15}{100}$$

Convert 18 to fraction \frac{450}{25}.

$$\frac{450}{25}-\frac{1}{25}-\frac{3}{100}-\frac{10}{100}-\frac{15}{100}$$

Since \frac{450}{25} and \frac{1}{25} have the same denominator, subtract them by subtracting their numerators.

$$\frac{450-1}{25}-\frac{3}{100}-\frac{10}{100}-\frac{15}{100}$$

Subtract 1 from 450 to get 449.

$$\frac{449}{25}-\frac{3}{100}-\frac{10}{100}-\frac{15}{100}$$

Least common multiple of 25 and 100 is 100. Convert \frac{449}{25} and \frac{3}{100} to fractions with denominator 100.

$$\frac{1796}{100}-\frac{3}{100}-\frac{10}{100}-\frac{15}{100}$$

Since \frac{1796}{100} and \frac{3}{100} have the same denominator, subtract them by subtracting their numerators.

$$\frac{1796-3}{100}-\frac{10}{100}-\frac{15}{100}$$

Subtract 3 from 1796 to get 1793.

$$\frac{1793}{100}-\frac{10}{100}-\frac{15}{100}$$

Since \frac{1793}{100} and \frac{10}{100} have the same denominator, subtract them by subtracting their numerators.

$$\frac{1793-10}{100}-\frac{15}{100}$$

Subtract 10 from 1793 to get 1783.

$$\frac{1783}{100}-\frac{15}{100}$$

Since \frac{1783}{100} and \frac{15}{100} have the same denominator, subtract them by subtracting their numerators.

$$\frac{1783-15}{100}$$

Subtract 15 from 1783 to get 1768.

$$\frac{1768}{100}$$

Reduce the fraction \frac{1768}{100} to lowest terms by extracting and canceling out 4.

$$\frac{442}{25}$$

Factor

$$\frac{2 \cdot 13 \cdot 17}{5 ^ {2}} = 17\frac{17}{25} = 17.68$$