Question

Pedro tapes a 3 5/6 piece of paper to a 2 3/4 inch of piece with no overlap. how long is the piece of paper he made?

Answer 1

the answer is 6 7/12 inches long

Answer 2

assuming the 3 5/6 is in inches
well, just add them up $\bf 3\frac{5}{6}+2\frac{3}{4}\implies \cfrac{3\cdot 6+5}{6}+\cfrac{2\cdot 4+3}{4}$