math help

What is 1/14 + 7/9?

What is 1/14 + 7/9?

This is how we add

1
14
+
7
9

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 1 by 9, and get 9, then we multiply 14 by 9 and get 126.

1/14 times 9

Now for the second term. You multiply 7 by 14, and get 98, then multiply 14 by 9 and get 126.

7/9 times 14

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

9
126
+
98
126

Step 2

Since our denominators match, we can add the numerators.

9 + 98 = 107

That gives us the sum, which is

107
126

Step 3

Now, do we need to simplify this fraction?

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

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...

Nope. Try the next prime number, 13...

Nope. Try the next prime number, 17...

Nope. Try the next prime number, 19...

Nope. Try the next prime number, 23...

Nope. Try the next prime number, 29...

Nope. Try the next prime number, 31...

Nope. Try the next prime number, 37...

Nope. Try the next prime number, 41...

Nope. Try the next prime number, 43...

Nope. Try the next prime number, 47...

Nope. Try the next prime number, 53...

Nope. Try the next prime number, 59...

Nope. Try the next prime number, 61...

Nope. Try the next prime number, 67...

Nope. Try the next prime number, 71...

Nope. Try the next prime number, 73...

Nope. Try the next prime number, 79...

Nope. Try the next prime number, 83...

Nope. Try the next prime number, 89...

Nope. Try the next prime number, 97...

Nope. Try the next prime number, 101...

Nope. Try the next prime number, 103...

Nope. Try the next prime number, 107...

Nope. Try the next prime number, 109...

No good. 109 is larger than 107. So we're done reducing.

Congratulations! Here's your final answer to 1/14 + 7/9

1
14
+
7
9
=
107
126
© 2014 Randy Tayler