How do you simplify #3/12 - 1/8#?

Get a common denominator. The easiest way is to multiply the both of the fractions by the other fraction's denominator on top and bottom:

To simplify ( \frac{3}{12} - \frac{1}{8} ), follow these steps:

1. Find a common denominator for the fractions, which in this case is 24, as it's the least common multiple of 12 and 8.

2. Rewrite both fractions with the common denominator: [ \frac{3}{12} = \frac{3 \times 2}{12 \times 2} = \frac{6}{24} ] [ \frac{1}{8} = \frac{1 \times 3}{8 \times 3} = \frac{3}{24} ]

3. Now, subtract the fractions: [ \frac{6}{24} - \frac{3}{24} = \frac{6 - 3}{24} = \frac{3}{24} ]

4. Simplify the result, if possible: [ \frac{3}{24} ] can be simplified by dividing both the numerator and denominator by their greatest common divisor, which is 3: [ \frac{3 \div 3}{24 \div 3} = \frac{1}{8} ]

Therefore, ( \frac{3}{12} - \frac{1}{8} ) simplifies to ( \frac{1}{8} ).