please help
2007-07-07 04:34:02 · 7 answers · asked by Bianca B 1 in Science & Mathematics ➔ Mathematics
15x/20 - x/20
= 14x/20
= 7x/10
2007-07-07 04:38:13 · answer #1 · answered by chickenelite 1 · 1⤊ 0⤋
15x/20 - x/20
15x - x
--------
20
14x/20 = 7x/10
Never never add or subtract fractions unless their denominators ( the bottom numbers) are the same. In your problem they are the same , so we can subtract right away.
2007-07-07 11:43:45 · answer #2 · answered by Grampedo 7 · 0⤊ 0⤋
well being that the bottom numbers of your fraction are the same you just subtract the top numbers & simplify
15x/20 - x/20
so: 15x - x = 14x
so your final answer is 14x/20
then simplify by dividing both the top & bottom of your fraction by 2
= 7x/10
2007-07-07 11:48:59 · answer #3 · answered by bnhawk03 3 · 0⤊ 0⤋
Well, you have common denominators, and your numerators are 15x and -x, so when you add those together, you get 14x.
So, you have 14x/20, which can be reduced to 7x/10.
2007-07-07 11:37:46 · answer #4 · answered by nona 3 · 1⤊ 0⤋
15x/20-x/20
=14x/20
=7x/10
2007-07-07 11:39:05 · answer #5 · answered by fofo m 3 · 1⤊ 0⤋
= 14x / 20
= 7x / 10
2007-07-07 12:59:54 · answer #6 · answered by Como 7 · 0⤊ 0⤋
7x/10
2007-07-07 11:36:33 · answer #7 · answered by yourdaddy0 2 · 0⤊ 0⤋