Answer:
4/9
Step-by-step explanation:
Notice the repeating symbol on top of the 0.4, so instead of 4/10, it would be 0.44444, which is 4/9 if you turn it into a fraction.
[tex]\frac{4}{10}[/tex]
0.4 is [tex]\frac{4}{10}[/tex] of a whole.
