Answer:
C:11/12
Step-by-step explanation:
1 2/-3/4
5/3-3/4
20/12-9/12
11/12
Answer:
3060°
Step-by-step explanation:
19-2 = 17
17 x 180 = 3060
<span>the notebook
</span>

<span>explanation
</span><span>
We have a mixed operation with numbers .
Each number is a whole and fractions .
Then we subtract the total from the whole and fractions of fractions
</span>

<span>the number of mixed
</span>9 <span>integer
</span>

<span>fraction
</span>

<span>by subtracting fractions must have the same value in the denominator .
</span>

3/15 < 10/15 <span>We have to take the total 1 to subtract it was possible
</span>