Solve 5/18-0.3

$$\frac{ 5 }{ 18 } -0.3$$

Evaluate

$$-\frac{1}{45}\approx -0.022222222$$

Solution Steps

Convert decimal number 0.3 to fraction \frac{3}{10}.

$$\frac{5}{18}-\frac{3}{10}$$

Least common multiple of 18 and 10 is 90. Convert \frac{5}{18} and \frac{3}{10} to fractions with denominator 90.

$$\frac{25}{90}-\frac{27}{90}$$

Since \frac{25}{90} and \frac{27}{90} have the same denominator, subtract them by subtracting their numerators.

$$\frac{25-27}{90}$$

Subtract 27 from 25 to get -2.

$$\frac{-2}{90}$$

Reduce the fraction \frac{-2}{90} to lowest terms by extracting and canceling out 2.

$$-\frac{1}{45}$$

Factor

$$-\frac{1}{45} = -0.022222222222222223$$