math help

What is 12/1 + 2/11?

What is 12/1 + 2/11?

Here's how you add

12
1
+
2
11

Step 1

We have to make sure the denominators are equal.

Since 1 is evenly divided by 11, we can multiply just one term to get a common denominator.

Multiply 12 by 11, and get 132, then we multiply 1 by 11 and get 11.

12/1 times 11

The problem now has new fractions to add:

132
11
+
2
11

Step 2

Since our denominators match, we can add the numerators.

132 + 2 = 134

This yields the answer

134
11

Step 3

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

To find out, we try dividing it by 2...

No good. So next you try the next prime number, which is 3...

No good. So next you try the next prime number, which is 5...

No good. So next you try the next prime number, which is 7...

No good. So next you try the next prime number, which is 11...

No good. So next you try the next prime number, which is 13...

No good. 13 is larger than 11. So we're done reducing.

And we're done! Here's the final answer to 12/1 + 2/11

12
1
+
2
11
=
134
11
© 2014 Randy Tayler