math help

What is 10/3 + 7/11?

What is 10/3 + 7/11?

This is how we add

10
3
+
7
11

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 10 by 11, and get 110, then we multiply 3 by 11 and get 33.

10/3 times 11

Now for the second term. You multiply 7 by 3, and get 21, then multiply 3 by 11 and get 33.

7/11 times 3

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

110
33
+
21
33

Step 2

Since our denominators match, we can add the numerators.

110 + 21 = 131

That gives us the sum, which is

131
33

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...

No good. 37 is larger than 33. So we're done reducing.

Congratulations! Here's your final answer to 10/3 + 7/11

10
3
+
7
11
=
131
33
© 2014 Randy Tayler