To find the other fraction, we can use the fact that the product of two fractions is equal to the product of their numerators divided by the product of their denominators. Let the other fraction be x
Then, we have:
7/ 1/2 . x
= 2 / 1/2
Simplifying the left-hand side, we get:
7x = 4
Dividing both sides by 7, we get:
x = 4/7
Therefore, the other fraction is
4/7