math help

What is 60/60 + 7/8?

What is 60/60 + 7/8?

This is how you add

60
60
+
7
8

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 60 by 8, and get 480, then we multiply 60 by 8 and get 480.

60/60 times 8

Now for the second term. You multiply 7 by 60, and get 420, then multiply 60 by 8 and get 480.

7/8 times 60

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

480
480
+
420
480

Step 2

Since our denominators match, we can add the numerators.

480 + 420 = 900

That gives us the sum, which is

900
480

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:

900
480
÷ 2 =
450
240

Let's try dividing by that again...

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

450
240
÷ 2 =
225
120

Let's try dividing by that again...

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:

225
120
÷ 3 =
75
40

Let's try dividing by that again...

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

Are both the numerator and the denominator evenly divisible by 5? Yes! So we reduce it:

75
40
÷ 5 =
15
8

Let's try dividing by that again...

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

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

No good. 11 is larger than 8. So we're done reducing.

There you have it! Here's the final answer to 60/60 + 7/8

60
60
+
7
8
=
15
8
© 2014 Randy Tayler