To convert the mixed number 7 25 into an improper fraction, you first need to multiply the whole number by the denominator and then add the numerator. In this case, you take the whole number 7 and multiply it by 25, which gives you 175. Next, you add the numerator 25 to this result, which gives you 175 + 25 = 200.
Now, you place this result over the original denominator. Therefore, 7 25 as a fraction becomes 200/25.
So, in summary, the mixed number 7 25 is equal to the improper fraction 200/25.