Posted by JOSH on Tuesday, November 15, 2011 at 8:36pm.
Please help me with these:
1. 5/8 + 5/6 =
2. 2 3/5 + 4 4/5 =
3. 13 1/2 + 7 2/3 =
4. 3/8  3/8 =
Thanks!

MATH  Ms. Sue, Tuesday, November 15, 2011 at 8:47pm
You'll need to change these fractions to fractions with a common denominator.
I'll do the first one for you.
5/8 = 15/24
5/6 = 20/24
(15/24) + (20/24) = 35/24 = 1 11/24
I'll be glad to check your other answers.

MATH  Bosnian, Tuesday, November 15, 2011 at 8:51pm
1.
5 / 8 = ( 3 * 5 ) / ( 3 * 8 ) = 15 / 24
5 / 6 = ( 4 * 5 ) / ( 4 * 6 ) = 20 / 24
5 / 8 + 5 / 6 = 15 / 24 + 20 / 24 = 35 / 24 =
( 24 + 11 ) / 24 =
1 11 / 24
2.
2 3 / 5 + 4 4 / 5 = 2 + 4 + 3 / 5 + 4 / 5 =
6 + 7 / 5 = 6 + ( 5 + 2 ) / 5 =
6 + 1 + 2 / 5 = 7 2 / 5
3.
1 / 2 = 3 / 6
2 / 3 = 4 / 6
13 1 / 2 + 7 2 / 3 = 13 + 7 + 3 / 6 + 4 / 6 =
20 + 7 / 6 =
20 + ( 6 + 1 ) / 6 =
20 + 1 + 1 / 6 =
21 1 / 6
4.
3 / 8  3 / 8 = 0
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