Answer
$-\frac{5}{12}$
Work Step by Step
$ x= \frac{1}{3}$ $y= \frac{3}{4}$
$x-y= \frac{1}{3}- \frac{3}{4}$
The least common multiple of the denominator is 12. Adjust the fractions based on the least common multiple. For the first fraction, multiply the numerator and denominator by 4.
$ \frac{1}{3}\times \frac{4}{4}= \frac{4}{12}$
For the second fraction, multiply the numerator and denominator by 3.
$ \frac{3}{4}\times \frac{3}{3}= \frac{9}{12}$
$\frac{4}{12}- \frac{9}{12}= -\frac{5}{12}$