7/8-5/6

To subtract fractions, you need to have a common denominator. In this case, the common denominator is 24 because 8 multiplied by 3 is 24 and 6 multiplied by 4 is also 24.

The first fraction, 7/8, needs to be expanded into a fraction with a denominator of 24. To do this, multiply the numerator and denominator of 7/8 by 3, resulting in 21/24.

The second fraction, 5/6, needs to be expanded into a fraction with a denominator of 24. To do this, multiply the numerator and denominator of 5/6 by 4, resulting in 20/24.

Now that both fractions have the same denominator, you can subtract them. Subtract the numerators, 21-20, to get 1. The denominator, 24, remains the same.

Thus, 7/8 - 5/6 = 1/24.