Solve 1/2-(1/2)^3

$$\frac { 1 } { 2 } - ( \frac { 1 } { 2 } ) ^ { 3 }$$

Evaluate

$$\frac{3}{8}=0.375$$

Solution Steps

Calculate \frac{1}{2} to the power of 3 and get \frac{1}{8}.

$$\frac{1}{2}-\frac{1}{8}$$

Least common multiple of 2 and 8 is 8. Convert \frac{1}{2} and \frac{1}{8} to fractions with denominator 8.

$$\frac{4}{8}-\frac{1}{8}$$

Since \frac{4}{8} and \frac{1}{8} have the same denominator, subtract them by subtracting their numerators.

$$\frac{4-1}{8}$$

Subtract 1 from 4 to get 3.

$$\frac{3}{8}$$

Factor

$$\frac{3}{2 ^ {3}} = 0.375$$