math help

What is 49/9 + 5/10?

What is 49/9 + 5/10?

This is how we add

49
9
+
5
10

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 49 by 10, and get 490, then we multiply 9 by 10 and get 90.

49/9 times 10

Now for the second term. You multiply 5 by 9, and get 45, then multiply 9 by 10 and get 90.

5/10 times 9

This gives us a new problem that looks like so:

490
90
+
45
90

Step 2

Since our denominators match, we can add the numerators.

490 + 45 = 535

That gives us an answer of

535
90

Step 3

Can this fraction be reduced?

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

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

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

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

535
90
÷ 5 =
107
18

Now, try the same number again.

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...

No good. 19 is larger than 18. So we're done reducing.

Congratulations! Here's your final answer to 49/9 + 5/10

49
9
+
5
10
=
107
18
© 2014 Randy Tayler