math help

What is 64/17 + 1/4?

What is 64/17 + 1/4?

This is how you add

64
17
+
1
4

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 64 by 4, and get 256, then we multiply 17 by 4 and get 68.

64/17 times 4

Do the same for the second term. We multiply 1 by 17, and get 17, then multiply 17 by 4 and get 68.

1/4 times 17

The problem now has new fractions to add:

256
68
+
17
68

Step 2

Since our denominators match, we can add the numerators.

256 + 17 = 273

The sum we get is

273
68

Step 3

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

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

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. So next you try the next prime number, which is 53...

No good. So next you try the next prime number, which is 59...

No good. So next you try the next prime number, which is 61...

No good. So next you try the next prime number, which is 67...

No good. So next you try the next prime number, which is 71...

No good. 71 is larger than 68. So we're done reducing.

And we're done! Here's the final answer to 64/17 + 1/4

64
17
+
1
4
=
273
68
© 2014 Randy Tayler