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please help

2006-10-04 01:52:11 · 14 answers · asked by TODD P 1 in Education & Reference Homework Help

14 answers

4/5 or 0.8

2006-10-04 01:57:33 · answer #1 · answered by Anarchy99 7 · 0 1

There's a thorough way and an easier way.

First, the thorough way:
Factor both the numerator and denominator.
120 = 8*15 = (2^3)*3*5
150 = 6*25 = 2*3*(5^2)

As a fraction, remove common terms from the numerator and denominator: 120/150 = (2^3)*3*5 / 2*3*(5^2) = (2^2)/5 = 4/5.
(Since the two in the denominator reduces 2^3 to 2^2, the three's cancel out and the five in the numerator cancels one of the fives in the denominator.)

Easier way:
120/150. Clearly they are both divisible by ten, so just chop off the trailing zeros: leaving 12/15. Now think of something that will divide both 12 and 15. Three comes to mind. Divide this out leaving 4 (12 divided by 3) in the numerator and 5 (15 divided by 3) in the denominator. Thus you have 4/5, same as we got before.

2006-10-04 02:01:40 · answer #2 · answered by IWasWondering 3 · 0 1

Take 120/150, both divisible by 30 120/3 = 4 150/30 = 5 == 4/5

2006-10-04 01:53:47 · answer #3 · answered by dicanus1 2 · 1 0

First you can reduce to 12/15, or divide both terms by ten. Then look for what goes into both numerator and denominator, in this case, 3. Take that out of both, and you get 4/5. Check your work by plugging both 120/150 and 4/5 into your calculator. You should end up with .8, so you know your answer is good.

2006-10-04 01:55:33 · answer #4 · answered by Anonymous · 0 1

120/150 divided by 10= 12/15
12/15 divided by 3= 4/5
This is the lowest term

2006-10-04 02:00:50 · answer #5 · answered by Sweety cutie 2 · 1 0

Start my romoving the 0 from the end of the numerator and the denomonator. Now you have 12/15 each of these will devide evenly by 3 so you have 4/5

2006-10-04 02:00:19 · answer #6 · answered by Anonymous · 1 0

Remove the 0 from both numerator and denominator
we get 12 / 15
Divide by the common factor i.e. 3, we get 4 / 5
Lowest term of the fraction is 4 / 5
In decimals it is 0.8

2006-10-04 01:58:42 · answer #7 · answered by young_friend 5 · 1 0

4/5

2006-10-04 01:56:38 · answer #8 · answered by supersezar 1 · 0 1

4/5

2006-10-04 01:54:10 · answer #9 · answered by Anonymous · 1 1

120/150
drop the zeros
12/15
common thing is both divide by 3
4/5 lowest term

2006-10-04 01:54:45 · answer #10 · answered by skipymcgoo 3 · 2 0

you gotta do your own homework,then only youll be good at maths..

120/150=12/15=4/5
÷10 .......... ÷3 on both sides

2006-10-04 01:55:47 · answer #11 · answered by robin 3 · 1 0

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