how to find HCF of fractions?

If two numbers and their L.C.M. is given, then how would we find H.C.F. of the numbers?

HCF and LCM of fractions and decimal fractions

Find HCF of 120 and 192

("HCF of given fraction")/("LCM of given fractions") =(HCF " of numerators" xx HCF " of denominators")/("LCM of denominators" xx) ______.

The LCM and HCF of two numbers are 1530 and 51 . Find how many such pairs are possible .

find the HCF of 426 and 576

Find the LCM and HCF of 26 and 91