Answer:
[tex]\frac{1}{5}[/tex]
Step-by-step explanation:
We are given,
The fraction of money spent on a product = [tex]\frac{4}{20}[/tex].
Since, we have that,
20 = 4 × 5
Simplifying this equation to get the required fraction i.e. [tex]\frac{4}{20}[/tex], we get,
[tex]\frac{4}{20}=\frac{1}{5}[/tex]
Thus, the fraction after canceling down gives the answer [tex]\frac{1}{5}[/tex].