Question

Find the actual sum 1 3/4+ 1 5/8 to determine how much david grew in two years. Use the estimate to explain how you know your answer is reasonable.Show your work.

Answer 1

S = 27/8

Explanation:

We need to find the actual sum of
`1(3)/(4)+1(5)/(8)`.

We need to find how much Devid grew in two years.

`1(3)/(4)=(7)/(4)`

and

`1(5)/(8)=(13)/(8)`

Sum means,

`S=(7)/(4)+(13)/(8)\\\\=(7(2)+13)/(8)\\\\=(14+13)/(8)\\\\=(27)/(8)`

Hence, the answer is 27/8.