Question 284341
Start with what you are given.
The first sentences says the sum -- that means we are going to add
Then it says two numbers. We are dealing with algebra so we assign letters to those numbers. Let's use a and b
so we are adding 
a+b
the sum is 56
is means equals
a+b=56
then it says the larger number. so far a and b are the same so we pick a for the larger number
a/b=1 + 16/b
[Explanation: this is not part of the problem : if  you divide 5 by 3 and have a remainder of 2 what do you do with the 2 you put it over the 3 . let's do it with letters 5/x =1 plus remainder  of 2 =1 2/x end of explanation]

back to the problem
so we have 16 remainder and put it over b
a/b=1 + 16/b
so now we have two equations with two unknowns
a+b=56
a/b=1 + 16/b
solve for a and b
a=36 b=20
check
a+b=56
36/20=1 16/20
ok