math help

What is 36/4 + 10/11?

What is 36/4 + 10/11?

Here's how you add

36
4
+
10
11

Step 1

We still have different denominators (bottom numbers), though, so we need to get a common denominator. This will make the bottom numbers match. Multiply the denominators together first. Now, multiply each numerator by the other term's denominator.

Now we multiply 36 by 11, and get 396, then we multiply 4 by 11 and get 44.

36/4 times 11

Now for the second term. You multiply 10 by 4, and get 40, then multiply 4 by 11 and get 44.

10/11 times 4

This gives us a new problem that looks like so:

396
44
+
40
44

Step 2

Since our denominators match, we can add the numerators.

396 + 40 = 436

So what's the answer so far?

436
44

Step 3

Can this fraction be reduced?

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

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:

436
44
÷ 2 =
218
22

Now, try the same number again.

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:

218
22
÷ 2 =
109
11

Now, try the same number again.

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...

No good. 13 is larger than 11. So we're done reducing.

Congratulations! Here's your final answer to 36/4 + 10/11

36
4
+
10
11
=
109
11
© 2014 Randy Tayler

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