In this exercise we have to use the knowledge of division to calculate how much of the cake is left, like this:
[tex]5/9[/tex]
Division is one of the four basic operations in mathematics and is the inverse of multiplication. The division of a number consists of its fractionation, in its fragmentation, which can result in a whole number or a decimal number.
So taking the total value minus the value eaten, we find that it is:
[tex]8/9 - 1/3 = 8/9 - 3/9 = 5/9[/tex]
See more about divide at brainly.com/question/810472
