What is the LCD of #2/1 and 6/11#?

1 Answer
Sep 18, 2016

The LCD = 11, giving #22/11 and 6/11#

Explanation:

Both denominators have to divide into the common denominator.
If it is to be as low as possible (LCD), it will have to be 11.

(1 divides into 11, but 11 does not divide into 1!)

This would give the fractions as
#2/1 xx11/11 and 6/11#

=#22/11 and 6/11#