Answer :

To determine what fraction 25 minutes is of 40 minutes, we follow these steps:

1. Identify the total amount of time:
The total amount of time we are considering is 40 minutes.

2. Identify the part of the total time:
The part of the total time we are interested in is 25 minutes.

3. Express the part as a fraction of the total:
We do this by dividing the part (25 minutes) by the total (40 minutes):

[tex]\[ \text{Fraction} = \frac{\text{Part}}{\text{Total}} = \frac{25}{40} \][/tex]

4. Simplify the fraction (if needed):
To simplify, divide both the numerator and the denominator by their greatest common divisor (GCD), which is 5 in this case:

[tex]\[ \frac{25}{40} = \frac{25 \div 5}{40 \div 5} = \frac{5}{8} \][/tex]

So, 25 minutes is [tex]\(\frac{5}{8}\)[/tex] of 40 minutes.

5. Convert the fraction to a decimal (if needed):
For further understanding, we might convert the fraction to a decimal:

[tex]\[ \frac{25}{40} = 0.625 \][/tex]

Therefore, the fraction of 25 minutes out of 40 minutes is [tex]\(\frac{5}{8}\)[/tex], which is also equivalent to 0.625 in decimal form.