math help

What is 22/22 + 1/7?

What is 22/22 + 1/7?

This is how we add

22
22
+
1
7

Step 1

We can't add two fractions with different denominators (the bottom number). So you need to get a common denominator - both bottom numbers need to match. To do this, you'll multiply the denominators times each other... but the numerators have to change, too. They get multiplied by the other term's denominator.

So we multiply 22 by 7, and get 154, then we multiply 22 by 7 and get 154.

22/22 times 7

Do the same for the second term. We multiply 1 by 22, and get 22, then multiply 22 by 7 and get 154.

1/7 times 22

So now our fractions look like this:

154
154
+
22
154

Step 2

Since our denominators match, we can add the numerators.

154 + 22 = 176

Now we have an answer.

176
154

Step 3

Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?

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

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:

176
154
÷ 2 =
88
77

Now, try the same number again.

Nope. Try the next prime number, 3...

Nope. Try the next prime number, 5...

Nope. Try the next prime number, 7...

Nope. Try the next prime number, 11...

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

88
77
÷ 11 =
8
7

Now, try the same number again.

No good. 11 is larger than 8. So we're done reducing.

Congratulations! Here's your final answer to 22/22 + 1/7

22
22
+
1
7
=
8
7
© 2014 Randy Tayler