Respuesta :
The answer to the question is Robert grew 1 2/3 inch taller that his brother
When it says "how much more", it means to find the difference between the siblings' growth by subtracting their growths.
Step 1: Convert both mixed numbers to improper fractions
[tex]3\frac{1}{3}- 1\frac{2}{3}[/tex] Learn how to do that here: https://brainly.com/question/13099965
[tex]3\frac{1}{3}\\\\3\times3=9\\9+1=10\\\\\frac{10}{3}[/tex]
[tex]1\frac{2}{3}\\\\3\times 1 = 3\\3 + 2 = 5\\\\\frac{5}{3}[/tex]
[tex]\frac{10}{3} - \frac{5}{3}[/tex]
Step 2: Subtract
10 - 5 = 5
[tex]\frac{5}{3}[/tex] or [tex]\bold {1\frac{2}{3}}[/tex]
Therefore, Robert grew [tex]\bold {1\frac{2}{3}}[/tex] more than his brother.
