Fred had 2 1/8 yards of pipe. He cuts 1 3/4 yards for a project. What is the LCD for the fractions in the problem?
To find the least common denominator (LCD) for the fractions 2 1/8 and 1 3/4, we need to determine the lowest common multiple (LCM) of the denominators, which are 8 and 4.
The multiples of 8 are: 8, 16, 24, 32, 40, 48, ...
The multiples of 4 are: 4, 8, 12, 16, 20, 24, 28, ...
From the lists, we can see that the lowest common multiple (LCM) of 8 and 4 is 8. Therefore, the least common denominator (LCD) for the given fractions is 8.