math help

What is 12/1 + 5/12?

What is 12/1 + 5/12?

This is how you add

12
1
+
5
12

Step 1

Now we need to make our denominators match.

Since 1 is evenly divided by 12, we can multiply just one term to get a common denominator.

Multiply 12 by 12, and get 144, then we multiply 1 by 12 and get 12.

12/1 times 12

The problem now has new fractions to add:

144
12
+
5
12

Step 2

Since our denominators match, we can add the numerators.

144 + 5 = 149

The sum we get is

149
12

Step 3

The last step is to reduce the fraction if we can.

To find out, we try dividing 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 12/1 + 5/12

12
1
+
5
12
=
149
12
© 2014 Randy Tayler