When you want to add fractions with different denominators-which are the bottom numbers- you have to find the lowest numbers that you can multiply to go into both numbers. I know that you can multiply 8×3 to get 24. And that I can multiply 12×2 to get 24. So 24 would be what we change the denominators to.
But we can't just change the denominators. I have to change the numerators, too. Since I multiplied 8×3, I have to multiply the numerator by 3, also. 3×3=9. The new fraction is

.
Do the same thing to the other fraction. But we will multiply by 2. 1×2=2. So now we have

. We can now add.

+

Only add the top numbers. We have

That fraction cannot be reduced, so

is the final answer.
Answer:1/4
Step-by-step explanation:
Say you have a pie and you split it into 4. Your friend wants theirs now so they eat their slice now but the rest of the pie is left
Answer:
6
Step-by-step explanation:
Number of water bottles bought by Sylvia = 24
Number of water bottles sold by Sylvia = 
Number of water bottles left with Sylvia = 
Number of water bottles bought by Sam = 36
Number of water bottles sold by Sam = Three times as many as bottles as Sylvia sold = 
Number of water bottles left with Sam = 
It is given that the number of water bottles left with Sylvia and Sam are equal.
i.e.

So, number of water bottles sold by Sylvia = <em>6</em>
Answer:
(3z+15) cm
Step-by-step explanation:
Perimeter: z cm + 8 cm + (z+3) cm + (z+4) cm = z cm + (z+3) cm + (z+4) cm +8 cm = (3z + 7) cm + 8 cm = (3z+15) cm.