Final answer:
To subtract 3/8 from 7/8, find a common denominator and subtract the numerators. Then, reduce the resulting fraction to the lowest terms.
Step-by-step explanation:
To subtract 3/8 from 7/8, you need to have a common denominator. In this case, the common denominator is 8. So, the equation becomes:
7/8 - 3/8 = (7 - 3)/8 = 4/8
To reduce 4/8 to the lowest terms, you can divide both the numerator and denominator by their greatest common divisor, which is 4.
4/8 ÷ 4/8 = 1/2
Therefore, the answer to 7/8 - 3/8 is 1/2.