Find the total thickness of two pieces of wood that a carpenter glued together if one is 5/16 in and the other is 7/8 inch thick?

1 Answer
May 1, 2018

#1 3/16# in

Explanation:

We cannot add fractions with different denominators, so we must convert them to fractions with equivalent denominators. To do that, multiply the fraction by a form of #1# (#x/x#):

#7/8 * 2/2 = 14/16#

Now, all we need to do is add the numerators of the fractions and convert to a mixed number:

#14/16 + 5/16 = 19/16 = 1 3/16#