math help

What is 45/4 + 1/2?

What is 45/4 + 1/2?

This is how we add

45
4
+
1
2

Step 1

Our denominators (bottom numbers) don't match, so we can't add yet.

Since 2 is evenly divided by 4, we can multiply just one term to get a common denominator.

Multiply 1 by 2, and get 2, then we multiply 2 by 2 and get 4.

1/2 times 2

So now our fractions look like this:

45
4
+
2
4

Step 2

Since our denominators match, we can add the numerators.

45 + 2 = 47

Now we have an answer.

47
4

Step 3

Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?

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

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

Nope. Try the next prime number, 5...

No good. 5 is larger than 4. So we're done reducing.

Congratulations! Here's your final answer to 45/4 + 1/2

45
4
+
1
2
=
47
4
© 2014 Randy Tayler