00:01
We need to subtract the fractions and write them in low's terms.
00:07
So before they can subtract, they have to have a common denominator.
00:11
So the first one already has a common denominator.
00:14
So 4 minus 2 is 2 over 8, but that can be reduced to 1 over 4.
00:20
Then we have 10 minus 5, which is, oh, but this has to be multiplied by 2.
00:25
So this is 10 over 24.
00:28
So 10 minus 10 is 0 over 24, which is just.
00:31
0.
00:33
Then we have 8 plus 12.
00:39
This is going to be 20 over 28.
00:42
They're both divisible by 4, so that's 5 over 7.
00:46
And this one, 28 times 2 gives you 56.
00:50
So this becomes 20 over 56.
00:53
So we subtract, so that's 20 over 56.
00:57
So 20 over 56.
00:59
We can divide a 4 out of both of them.
01:02
So this becomes 5 over 14.
01:07
We need to make this into 36 on both of these.
01:10
So this becomes 20 over 36...