[BUG]: Absence of fractions on Fraction lesson - android app - Portuguese version

[ltcpaa]

Describe the bug

There are some issues in some chapters on Fractions topic that are not exhibiting the fraction, therefore the user can't see what math operation they need to do.
Until now I've checked lessons 1 to 3, and both 2 and 3 have the same bug. I think it's best to check them all

URL of the page where the issue is observed.

No response

Steps To Reproduce

Go to chapter 2 and keep doing the lessons, you will see the absence of the fraction

Expected Behavior

No response

Screenshots/Videos

The absence of fraction is highlighted with the yellow arrow

What device are you using?

Mobile

Operating System

Android

What browsers are you seeing the problem on?

No response

Browser version

No response

Additional context

No response

Tips for developers

Before tackling the bug, please use git bisect (see https://git-scm.com/docs/git-bisect) to investigate which PR caused it (you only need to go back as far as commit https://github.com/oppia/oppia/commits/9a334e9). If you find the PR, leave a comment on this issue pointing to it, or just say that it happened before commit 9a334e9 if you could reproduce it there. This will help us fix the issue by reverting the faulty PR.

Also, if this is your first issue, please make sure to follow https://github.com/oppia/oppia/wiki/Contributing-code-to-Oppia#choosing-a-good-first-issue and https://github.com/oppia/oppia/wiki/Contributing-code-to-Oppia#setting-things-up before claiming it. Thanks!

[adhiamboperes]

Closing this since it's a duplicate of #5112