Question

Find a common denominator and then subtract and simplify your answer.
11/12-3/4
a: 1/7
b: 1/5
c: 1/6

Answer 1

Answer: c. 1/6

Step-by-step explanation:

The least common demoninator would be 12, as 12 is a multiple of 4.

We can multiply the fraction 3/4 by (3/3)

3/4 = 3/4*(3/3)

= (3*3)/3*4)

= 9/12

We can plug in the value of 9/12 in as 3/4 back into the expression:

= 11/12 - 9/12

We can combine the numerators since there is a common denominator:

= (11-9)/12

= 2/12

Divide the numerator and denominator of this fraction by 2:

= 1/6

Answer 2

The answer is C, the common denominator is 12 and then you multiply the 3 and 4 which simplifies the equation to 11/12 - 9/12, which is 2/12 and you can divide that by 2, getting 1/6.