-1/2 + (3/4 * 4/9) Here we need to start by finding the common denominator for 3/4 and 4/9.
For this problem, you can just multiply the numerators: (3*4)=12
And the denominators: (4*9)=36
So we get the fraction 12/36.
To simplify this equation we will reduce the fraction by dividing by 4. We then get 3/9
Now we have -1/2 + 3/9
To get a common denominator we will cross multiply:
-1*9= -9
2*3=6
2*9 and 9*2 = 18 and 18 so we get:
-9/18+6/18
Now we can add the numerators and the denominator remains the same and we get the answer: -3/18
Hope this helps!