Question #76b19

1 Answer
Sep 18, 2016



It is generally easier to find the HCF and LCM of variables because they are already given in factor and index form.

We can see that thre is #y^2# in each.

As for the numbers, 8 does not divide into 20, but 4 is a factor of 8 and of 20.

There are several common factors, but the Highest common factor is