Question

Question #a3bc9

Answer 1

`-7/9 + 3/4 =-1/36`

Explanation:

First, find the lowest common denominator (LCD). That means the denominators in both fractions have to be the same.

9 and 4 have an LCD of 36.

After you find the LCD, multiply the denominators and numerators so that both fractions have the same denominator:

`-7/9 + 3/4 = -(7*4)/(9*4) + (3*9)/(4*9) = -28/36 + 27/36 = -1/36`

Since `-1/36` cannot be simplified any further, we leave it as is.

Our final answer is `-1/36`.