20 9\16 + 24 5\8 + 21 5\16 + 23 3\8 don't simplify

88  14/16

Step-by-step explanation:

I call these mixed numbers, a mixed number is written as a b/c and it means

So, we can use the above to re arrange our expression to a more convenient presentation.

we have>

88  14/16, we tend to no simplify this expression anymore since, the number 14/16 usually means something in real life, like the diameter for a construction pipe

b

step-by-step explanation:

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )