To add or subtract fractions, first you should make them into LCD (Least Common Denominator). Then, add/subtract the numerator as usual and let the denominator remain.
Solve:
<u>#LCD (Least Common Denominator)</u>
1/3 and 1/4
3 and 4 least common factor is 12
<h2>Thus, 12 will be the least common denominator</h2>