Solve 0.12div(-0.4)+3.8

$$0.12 \div ( - 0.4 ) + 3.8$$

Evaluate

$$3.5$$

Solution Steps

Expand \frac{0.12}{-0.4} by multiplying both numerator and the denominator by 100.

$$\frac{12}{-40}+3.8$$

Reduce the fraction \frac{12}{-40} to lowest terms by extracting and canceling out 4.

$$-\frac{3}{10}+3.8$$

Convert decimal number 3.8 to fraction \frac{38}{10}. Reduce the fraction \frac{38}{10} to lowest terms by extracting and canceling out 2.

$$-\frac{3}{10}+\frac{19}{5}$$

Least common multiple of 10 and 5 is 10. Convert -\frac{3}{10} and \frac{19}{5} to fractions with denominator 10.

$$-\frac{3}{10}+\frac{38}{10}$$

Since -\frac{3}{10} and \frac{38}{10} have the same denominator, add them by adding their numerators.

$$\frac{-3+38}{10}$$

Add -3 and 38 to get 35.

$$\frac{35}{10}$$

Reduce the fraction \frac{35}{10} to lowest terms by extracting and canceling out 5.

$$\frac{7}{2}$$

Factor

$$\frac{7}{2} = 3\frac{1}{2} = 3.5$$