math help

What is 22/22 + 7/12?

What is 22/22 + 7/12?

Here's how to add

22
22
+
7
12

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 22 by 12, and get 264, then we multiply 22 by 12 and get 264.

22/22 times 12

Now for the second term. You multiply 7 by 22, and get 154, then multiply 22 by 12 and get 264.

7/12 times 22

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

264
264
+
154
264

Step 2

Since our denominators match, we can add the numerators.

264 + 154 = 418

That gives us the sum, which is

418
264

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:

418
264
÷ 2 =
209
132

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...

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

Are both the numerator and the denominator evenly divisible by 11? Yes! So we reduce it:

209
132
÷ 11 =
19
12

Let's try dividing by that again...

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 22/22 + 7/12

22
22
+
7
12
=
19
12
© 2014 Randy Tayler