Solve -4(-1/8+0.3)

$$- 4 ( - \frac { 1 } { 8 } + 0.3 )$$

Evaluate

$$-0.7$$

Solution Steps

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

$$-4\left(-\frac{1}{8}+\frac{3}{10}\right)$$

Least common multiple of 8 and 10 is 40. Convert -\frac{1}{8} and \frac{3}{10} to fractions with denominator 40.

$$-4\left(-\frac{5}{40}+\frac{12}{40}\right)$$

Since -\frac{5}{40} and \frac{12}{40} have the same denominator, add them by adding their numerators.

$$-4\times \frac{-5+12}{40}$$

Add -5 and 12 to get 7.

$$-4\times \frac{7}{40}$$

Express -4\times \frac{7}{40} as a single fraction.

$$\frac{-4\times 7}{40}$$

Multiply -4 and 7 to get -28.

$$\frac{-28}{40}$$

Reduce the fraction \frac{-28}{40} to lowest terms by extracting and canceling out 4.

$$-\frac{7}{10}$$

Factor

$$-0.7$$