Final answer:
The missing number in the fraction to make it equal to one is 127, because any fraction that has the same number in both the numerator and the denominator is equivalent to 1.
Step-by-step explanation:
The question asks to determine the missing number in the fraction ?/127=1. To make a fraction equal to 1, the numerator (the number on top) and the denominator (the number on the bottom) must be equal. Therefore, we must find a number that, when placed as the numerator, will create a fraction equal to one with 127 as the denominator.
In other words, for any fraction to be equivalent to 1, such as x/x = 1, both x values must be the same. Thus, for the fraction ?/127, the missing number is 127 because 127/127 = 1.
This falls under the algebraic rule that states as long as we perform the same operation on both sides of the equals sign, the expression remains an equality. Any fraction that has the same quantity in the numerator and the denominator has a value of 1.