2007-04-21 07:07:00 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
-5 / - 15 = 1 / 3
- - - - - - - s-
2007-04-21 07:31:43 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
-5 = -1 * 5 = -1 * 5
-15 = -1 * 15 = -1 * 3 * 5
-5/-15 = (-1 * 5) / (-1 * 3 * 5)
The -1 and 5 in the numerator and denominator cancel because
-1 / -1 = 1
and
5 / 5 = 1
which leaves:
(1 * 1) / (1 * 1 * 3) = 1 / 3
2007-04-21 14:11:26 · answer #2 · answered by the redcuber 6 · 0⤊ 0⤋
A negative number divided by another negative number is a positive number; if only one or the other is negative,the answer is negative; if both are positive, then the answer is positive (same rule applies for multiplication). So (-5/-15) is the same as (5/15), which is 1/3.
2007-04-21 14:12:16 · answer #3 · answered by Mark S, JPAA 7 · 0⤊ 0⤋
2 "-" = a "+"
(-5) / (-15) = 0.333333333
ignore the " - "
so 5 / 15 = 0.33333333
so u end up with -5 / -15 = 0.333333333 or 1/3 either way it all the same :)
2007-04-21 14:27:16 · answer #4 · answered by M_E 2 · 0⤊ 0⤋
when you divide or multiply two negatives you will get a positive.
-5/-15=1/3
2007-04-21 14:12:25 · answer #5 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
minus over minus gives plus
5/15 gives 1/3
answer: 1/3
2007-04-21 14:09:58 · answer #6 · answered by iyiogrenci 6 · 0⤊ 0⤋