math help

What is 36/4 + 5/12?

What is 36/4 + 5/12?

Let's add

36
4
+
5
12

Step 1

Now we need to make our denominators match.

12 goes into 4 evenly, so we only need to multiply one term to get a common denominator.

Multiply 36 by 3, and get 108, then we multiply 4 by 3 and get 12.

36/4 times 3

This gives us a new problem that looks like so:

108
12
+
5
12

Step 2

Since our denominators match, we can add the numerators.

108 + 5 = 113

That gives us an answer of

113
12

Step 3

Can this fraction be reduced?

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

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...

Nope! So now we try the next greatest prime number, 11...

Nope! So now we try the next greatest prime number, 13...

No good. 13 is larger than 12. So we're done reducing.

There you have it! Here's the final answer to 36/4 + 5/12

36
4
+
5
12
=
113
12
© 2014 Randy Tayler