Question

Silvia is growing trees and studying their heights. Her data is shown

Answer 1

Answer:

The difference between the heights of the Birch and Spruce trees is:

                      $\dfrac{3}{8}\ units$

Step-by-step explanation:

The height of the Birch tree is:

       $3\frac{1}{4}$ which in improper fraction is written as:

   $\dfrac{13}{4}\ units$

Also, the height of Spruce tree is:

   $2\frac{7}{8}$ which in improper fraction is written as:

  $\dfrac{23}{8}\ units$

The difference in the height of two tree is given by:

  $\dfrac{13}{4}-\dfrac{23}{8}$

on taking least common multiple we get:

$=\dfrac{13\times 2-23\times 1}{8}\\\\=\dfrac{26-23}{8}\\\\\\=\dfrac{3}{8}\ units$

Hence, the difference between the height of tree is:

                   $\dfrac{3}{8}\ units$

Answer 2

https://www.calculatorsoup.com/calculators/math/mixednumbers.php

3/8 is the difference