math help

What is 45/3 + 8/9?

What is 45/3 + 8/9?

This is how you add

45
3
+
8
9

Step 1

We have to make sure the denominators are equal.

9 goes into 3 evenly, so we only need to multiply one term to get a common denominator.

Multiply 45 by 3, and get 135, then we multiply 3 by 3 and get 9.

45/3 times 3

This gives us a new problem that looks like so:

135
9
+
8
9

Step 2

Since our denominators match, we can add the numerators.

135 + 8 = 143

That gives us an answer of

143
9

Step 3

Can this fraction be reduced?

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

No good. So next you try the next prime number, which is 3...

No good. So next you try the next prime number, which is 5...

No good. So next you try the next prime number, which is 7...

No good. So next you try the next prime number, which is 11...

No good. 11 is larger than 9. So we're done reducing.

And we're done! Here's the final answer to 45/3 + 8/9

45
3
+
8
9
=
143
9
© 2014 Randy Tayler