Find out the square root of 16 25 .

We know that for finding the square root of a perfect square n , we have to find the prime factors of n , then we need to pair the factors. Now, chose one prime number from each pair and multiply. Here, we have to find its square root of the fraction 16 25 . To find the fraction square root, first, find the factorisation of the numerator and the denominator of the fraction. Then, find one prime number from the pair of prime factors of both numerator and denominator. Thus, we get, 16 25 = ( 2 × 2 ) × ( 2 × 2 ) 5 × 5 . After choosing one prime factor from each pair of factors, we get, 16 25 = 2 × 2 5 = 4 5 . Hence, the square root of 16 25 is 4 5 .