Final answer:
To rewrite fractions with a least common denominator, find the least common multiple (LCM) of the denominators. Multiply the fractions so that they have the same denominator. The fractions (7/8) and (3/4) can be written with a least common denominator of 8 as (7/8) and (6/8), respectively.
Step-by-step explanation:
To rewrite fractions with a least common denominator, you need to find the least common multiple (LCM) of the denominators. In this case, the denominators are 8 and 4. The LCM of 8 and 4 is 8, so you need to rewrite both fractions with denominator 8.
The first fraction, 7/8, can be rewritten with denominator 8 by multiplying both the numerator and denominator by 1. The second fraction, 3/4, can be rewritten with denominator 8 by multiplying both the numerator and denominator by 2.
So, the fractions (7/8) and (3/4) can be written with a least common denominator of 8 as (7/8) and (6/8), respectively.