math help

What is 3/24 + 4/11?

What is 3/24 + 4/11?

Here's how to add

3
24
+
4
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 3 by 11, and get 33, then we multiply 24 by 11 and get 264.

3/24 times 11

Do the same for the second term. We multiply 4 by 24, and get 96, then multiply 24 by 11 and get 264.

4/11 times 24

The problem now has new fractions to add:

33
264
+
96
264

Step 2

Since our denominators match, we can add the numerators.

33 + 96 = 129

This yields the answer

129
264

Step 3

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

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

Nope! So now we try the next greatest prime number, 3...

Are both the numerator and the denominator evenly divisible by 3? Yes! So we reduce it:

129
264
÷ 3 =
43
88

Let's try dividing by that again...

Nope! So now we try the next greatest prime number, 5...

Nope! So now we try the next greatest prime number, 7...

Nope! So now we try the next greatest prime number, 11...

Nope! So now we try the next greatest prime number, 13...

Nope! So now we try the next greatest prime number, 17...

Nope! So now we try the next greatest prime number, 19...

Nope! So now we try the next greatest prime number, 23...

Nope! So now we try the next greatest prime number, 29...

Nope! So now we try the next greatest prime number, 31...

Nope! So now we try the next greatest prime number, 37...

Nope! So now we try the next greatest prime number, 41...

Nope! So now we try the next greatest prime number, 43...

Nope! So now we try the next greatest prime number, 47...

No good. 47 is larger than 43. So we're done reducing.

There you have it! Here's the final answer to 3/24 + 4/11

3
24
+
4
11
=
43
88
© 2014 Randy Tayler