I am coming up with an answer of 5 7/8 but this is a multiple choice question for me and that is not one of the answers. Where am I going wrong?
A. 77/18
B. 97/18
C. 115/18
D. 5
2007-06-27 05:24:57 · 8 answers · asked by casper5 3 in Science & Mathematics ➔ Mathematics
Crap.. Sorry
12 2/9 - 6 5/6
2007-06-27 05:32:58 · update #1
What are we subtracting?
2007-06-27 05:28:20 · answer #1 · answered by JJ 4 · 0⤊ 0⤋
13/18 - 4/9 = In order to subtract fractions the bottom (denominator - d for down) has to be the same. The 9 can be changed to make it an 18 by multiplying it by 2. But if you multiply the bottom of a number you have to multiply the top (numerator) by the same number. You will multiply the fraction 4/9 by 2/2 The reason the top and bottom have to be the same is 2/2 = 1. You really have the same fraction you just multiplied it by a fraction that equals 1. So the 4/9 now equals 8/18 but it is in fact still the same value....just can be reduced to 4/9. 13/18 - 4/9 * 2/2 = Note: when multiplying fractions multiply straight across top and bottom 13/18 - 4*2 / 9*2 = 13/18 - 8/18 = Note: when adding/subtracting fractions the bottom stays the same (they must match) and the top changes. 13 -8 / 18 = 5/8 I know this was REALLY over explained. But if you print this it can help you with fractions.
2016-05-17 12:29:14 · answer #2 · answered by ? 3 · 0⤊ 0⤋
12 2/9 - 6 5/6
= 12 4/18 - 6 15/18
= 11 22/18 - 6 15/18
= 5 7/18
= 97 / 18
ANSWER B
2007-06-30 20:57:38 · answer #3 · answered by Como 7 · 0⤊ 0⤋
(12 2/9) - (6 5/6) =
(12 4/18) - (6 15/18) =
(11 22/18) - (6 15/18) =
5 7/18 = [5(18) + 7] / 18 = 97 / 18.
[You were only off on the denominator.]
2007-06-27 05:38:37 · answer #4 · answered by Anonymous · 0⤊ 0⤋
12 2/9 - 6 5/6
=110/9-35/6
=115/18
option c
2007-06-28 21:48:41 · answer #5 · answered by Sumita T 3 · 0⤊ 0⤋
Is there a question in there somewhere (besides where am I going wrong)?
2007-06-27 05:29:49 · answer #6 · answered by stone w 2 · 0⤊ 0⤋
we need to have the two fractions.
2007-06-27 05:30:46 · answer #7 · answered by Anonymous · 0⤊ 0⤋
please show the fraction that are going to be subtracted
we wont able to help you
2007-06-27 05:32:46 · answer #8 · answered by Amy 2 · 0⤊ 0⤋