Solve 1/12+-2/13

$$\frac{ 1 }{ 12 } + \frac{ -2 }{ 13 }$$

Evaluate

$$-\frac{11}{156}\approx -0.070512821$$

Solution Steps

Fraction \frac{-2}{13} can be rewritten as -\frac{2}{13} by extracting the negative sign.

$$\frac{1}{12}-\frac{2}{13}$$

Least common multiple of 12 and 13 is 156. Convert \frac{1}{12} and \frac{2}{13} to fractions with denominator 156.

$$\frac{13}{156}-\frac{24}{156}$$

Since \frac{13}{156} and \frac{24}{156} have the same denominator, subtract them by subtracting their numerators.

$$\frac{13-24}{156}$$

Subtract 24 from 13 to get -11.

$$-\frac{11}{156}$$

Factor

$$-\frac{11}{156} = -0.07051282051282051$$