Answer:

Step-by-step explanation:

Answer:
the one you have marker is correct
Step-by-step explanation:
If there is 23 classrooms and each has 10 then you would have to times 23 by 10 - 23x10=230
Answer:
1/5, 1/6, 1/7, 1/8,1/9, 1/10,1/11,1/12
The simplified answer is
.
<u>Step-by-step explanation:</u>

To add or subtract denominators of the fraction must be same.
If it is not the same, we must take LCM of the denominators. and so we can add the fractions.
To make the denominator same multiply the 1st term
and 2nd term by 
= 
LCM of the denominators is 6x²+ 3xz + 2xy +yz.
Multiply the factors in the numerator.
= 
Now, the denominators are same, you can subtract it.
= 
= 
Thus the simplified solution is 