Respuesta :

Answer:

5/24

Step-by-step explanation:

10/12 + 3/8 + what = 1  Find a common denominator.  The smallest number that 12 and 8 will both go into is 24.  Rewire the fractions with 24 as the denominator.

10/12 = 10/24  Multiple the top and bottom by 2

3/8 = 9/24  Multiple the top and bottom by 3

Now we have

10/24 + 9/24 + X/24 = 24/24  (24/24 is the equivalent to 1)

24 - 10 - 9 = 5

so 10/24 + 3/24 + 5/24 = 24/24