math help

What is 56/60 + 2/9?

What is 56/60 + 2/9?

Let's add

56
60
+
2
9

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 56 by 9, and get 504, then we multiply 60 by 9 and get 540.

56/60 times 9

Now for the second term. You multiply 2 by 60, and get 120, then multiply 60 by 9 and get 540.

2/9 times 60

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

504
540
+
120
540

Step 2

Since our denominators match, we can add the numerators.

504 + 120 = 624

That gives us the sum, which is

624
540

Step 3

Now, do we need to simplify this fraction?

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

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

624
540
÷ 2 =
312
270

Now, try the same number again.

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

312
270
÷ 2 =
156
135

Now, try the same number again.

Nope. Try the next prime number, 3...

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

156
135
÷ 3 =
52
45

Now, try the same number again.

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...

Nope. Try the next prime number, 41...

Nope. Try the next prime number, 43...

Nope. Try the next prime number, 47...

No good. 47 is larger than 45. So we're done reducing.

Congratulations! Here's your final answer to 56/60 + 2/9

56
60
+
2
9
=
52
45
© 2014 Randy Tayler