2006-06-26 04:42:54 · 13 answers · asked by Lady P 1 in Education & Reference ➔ Teaching
start by trying to get rid of the denominators on the fraction, lets start with the 20 since its the biggest one. multiply both sides by 20.
12 * x = 9, now isolate x, divide both sides by 12
x = 9/12, now we reduce the fraction. notice that both the nominator and denominator is divisible by 3. so divide both by 3, this is okay since you're essentially dividing by 1.
and x = 3/4 or 0.75.
2006-06-26 04:48:17 · answer #1 · answered by tclphz 3 · 0⤊ 0⤋
x = 3/4
2006-06-26 11:44:33 · answer #2 · answered by ndtaya 6 · 0⤊ 0⤋
3/5*x=9/20
x=9/20 / 3/5 (get the LCD then divide it with the denominator
times the numerator)
x=9/12 or 3/4
to check : 3/5 * 3/4= 9/20
2006-06-26 11:58:19 · answer #3 · answered by badlunar 1 · 0⤊ 0⤋
3/4
2006-06-26 11:46:25 · answer #4 · answered by stick man 6 · 0⤊ 0⤋
3/5 * X = 9/20
X = 9/20 * 5/3
X = 3/4
If you wanna answer in decimal that is X = 0.75
2006-06-26 21:49:52 · answer #5 · answered by ilove_ y 2 · 0⤊ 0⤋
3/5 * 3/4 = 9/20
Simplest way, as 3*3 = 9 and 5*4=20
But still
Let
3/5 * x/y = 9/20
then
3/5 * 20/9 = y/x (according to reciprocal theorey)
60/45 = y/x
4/3 = y/x
so, y=4 and x=3
Hope , you like it
Chees!
Krishnam
2006-06-26 11:51:54 · answer #6 · answered by Anonymous · 0⤊ 0⤋
I think you're in the first primary :
(3/5) X = 9/20
X=3/4
2006-06-26 11:46:18 · answer #7 · answered by jmdanial 4 · 0⤊ 0⤋
3/5*x=9/20
cross multiply the fractions since it has the equal sign,
you get:
60=45x
divide both sides with 45 to get x
x=1.33 or 0.75
2006-07-03 07:27:04 · answer #8 · answered by rennix 1 · 0⤊ 0⤋
u seem to be posting a lot of these..maybe go back 2 the section of the book that teaches and gives examples of the math ur doing. or googling a helping site instead of just asking for answers
2006-06-26 11:46:40 · answer #9 · answered by losersrus 3 · 0⤊ 0⤋
x=.75
2006-06-26 11:45:06 · answer #10 · answered by b_je 2 · 0⤊ 0⤋