Reed made a lasagna for dinner. That night, he ate1/4
% of the lasagna. His brother and sister ate 2/3 of
the lasagna. How much of the lasagna did they eat
in all?
First find the LCM of 4 and 3(12). Then make the denominator of both fractions 12(3/12 and 8/12). Then add the fractions to get that they ate 11/2 of the lasagna.