what is 12 1/4 plus 9 3/8 plus 10 1/2 plus 16 1/8 =

Gotta' be more than that, Anonymous, since 12 + 9 + 10 + 16 = 47

Let's just add the fractions with this total

1/4 + 3/8 + 1/2 + 1/8    the common denominator is 8....so we have

2/8 + 3/8 + 4/8 + 1/8 = 10/8 =5/4  = 1 + 1/4  and adding this to 47, we have

48 +  1/4

It equals $${\frac{{\mathtt{386}}}{{\mathtt{8}}}}$$, or 42 $${\frac{{\mathtt{1}}}{{\mathtt{4}}}}$$