math help

What is 12/1 + 4/10?

What is 12/1 + 4/10?

This is how to add

12
1
+
4
10

Step 1

Now we need to make our denominators match.

10 goes into 1 evenly, so we only need to multiply one term to get a common denominator.

Multiply 12 by 10, and get 120, then we multiply 1 by 10 and get 10.

12/1 times 10

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

120
10
+
4
10

Step 2

Since our denominators match, we can add the numerators.

120 + 4 = 124

Answer:

124
10

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:

124
10
÷ 2 =
62
5

Let's try dividing by that again...

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

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

Nope! So now we try the next greatest prime number, 7...

No good. 7 is larger than 5. So we're done reducing.

There you have it! Here's the final answer to 12/1 + 4/10

12
1
+
4
10
=
62
5
© 2014 Randy Tayler