math help

What is 50/8 + 5/11?

What is 50/8 + 5/11?

Here's how we add

50
8
+
5
11

Step 1

Of course, you can't add two fractions if the denominators (bottom numbers) don't match. To get a common denominator, multiply the denominators together. Then we fix the numerators by multiplying each one by their other term's denominator.

Now you multiply 50 by 11, and get 550, then we multiply 8 by 11 and get 88.

50/8 times 11

Do the same for the second term. We multiply 5 by 8, and get 40, then multiply 8 by 11 and get 88.

5/11 times 8

The problem now has new fractions to add:

550
88
+
40
88

Step 2

Since our denominators match, we can add the numerators.

550 + 40 = 590

This yields the answer

590
88

Step 3

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

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:

590
88
÷ 2 =
295
44

So far so good... let's try to divide by that number again.

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. So next you try the next prime number, which is 17...

No good. So next you try the next prime number, which is 19...

No good. So next you try the next prime number, which is 23...

No good. So next you try the next prime number, which is 29...

No good. So next you try the next prime number, which is 31...

No good. So next you try the next prime number, which is 37...

No good. So next you try the next prime number, which is 41...

No good. So next you try the next prime number, which is 43...

No good. So next you try the next prime number, which is 47...

No good. 47 is larger than 44. So we're done reducing.

And we're done! Here's the final answer to 50/8 + 5/11

50
8
+
5
11
=
295
44
© 2014 Randy Tayler