math help

What is 24/12 + 5/10?

What is 24/12 + 5/10?

This is how you add

24
12
+
5
10

Step 1

Can you add yet? Nope! The denominators don't match. We need a common denominator. So next we take both denominators and multiply them. Next, take each numerator and multiply it by the denominator of the other term.

So, we multiply 24 by 10, and get 240, then we multiply 12 by 10 and get 120.

24/12 times 10

Now for the second term. You multiply 5 by 12, and get 60, then multiply 12 by 10 and get 120.

5/10 times 12

We now have a new problem, that looks like this:

240
120
+
60
120

Step 2

Since our denominators match, we can add the numerators.

240 + 60 = 300

Answer:

300
120

Step 3

Now, do we need to simplify this fraction?

First, we attempt to divide it by 2...

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:

300
120
÷ 2 =
150
60

Let's try dividing by that again...

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:

150
60
÷ 2 =
75
30

Let's try dividing by that again...

Nope! So now we try the next greatest prime number, 3...

Are both the numerator and the denominator evenly divisible by 3? Yes! So we reduce it:

75
30
÷ 3 =
25
10

Let's try dividing by that again...

Nope! So now we try the next greatest prime number, 5...

Are both the numerator and the denominator evenly divisible by 5? Yes! So we reduce it:

25
10
÷ 5 =
5
2

Let's try dividing by that again...

No good. 5 is larger than 2. So we're done reducing.

There you have it! Here's the final answer to 24/12 + 5/10

24
12
+
5
10
=
5
2
© 2014 Randy Tayler