00:01
To add fractions, you need a common denominator.
00:04
The number on the bottom must be the same.
00:07
So another way of looking at number one is to say this is one -eighth plus one -eighth because 2 over 16 simplifies to 1 -8.
00:18
That gives you 2 over 8, which you can reduce to 1 -4th.
00:24
So the answer to number 1 is 1 -4th.
00:27
The second one we need to get common denominator.
00:32
So a common denominator of 5 and 4 is 20.
00:36
So that would be 8 over 20 plus 5 over 20, which gives you 13 over 20.
00:47
Common denominator for 7 and 8 is 56.
00:54
So that would be 8 plus 28.
01:00
28 plus 8 is 36 over 56.
01:07
You want to write our fractions in lowest terms, so that can be reduced to divide top and bottom by 4, 9 over 14.
01:18
Common denominator for 5 and 13 is 65.
01:26
So this would be 26 over 65 plus 35 over 65.
01:33
Add those two values together, you get 61 over 65, and that's as simple as that fraction gets...