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8 answers

Take 3 1/2 and make it into a improper fraction. This will make 7/2 ( 3*2+1 Makes 7 put it over the one). Take the seven divide by two. That goes 3 times. When you subtract, you should get one. A decimal point goes behind the seven and put a zero beside the decimal point. Bring down the zero, it will make ten. divide the 2 into the ten. it goes evenly 5. Your answer is 3.5.
You could just take the 1/2 and divide then you would get .5 then put it behind your 3 which would give you a 3.5

a site for you http://www.themathpage.com/ARITH/fractions-into-decimals-1.htm

2007-04-18 03:40:59 · answer #1 · answered by vi 2 · 0 0

that's a lot of questions, what's with all the fraction to decimal conversions?....well, 3 is the whole part, so it is 3. something. Taking the fraction 1/2, that is literally 1 divided by 2. Do the arithmetic and get .5 Put it together and it is written 3.5

Do the same for every fraction thereafter.

2007-04-18 10:34:51 · answer #2 · answered by Mary E 3 · 0 0

the answer is 3.5 quick method , while the

longest method is

1. change it to improper fraction
3 1/2 = (3 x 2) + 1 / 2 = 6 + 1 / 2 = 7/2 =3.5
even longest method convert it to % then to decimal
2. 7 x 100 / 2 =700/2 = 350% then move decimal point
two times to the left =3.5

2007-04-18 10:58:25 · answer #3 · answered by swan 1 · 0 0

3.5 its easy cuz u know 1/2 is .5 and u cant make 3 a decimal so just change da 1/2 to .5

2007-04-18 10:35:54 · answer #4 · answered by Shnizzle727 2 · 0 0

3.5 This is done by dividing 1 by 2. If you write this out you will get a 5 and you must put the decimal where it goes.

2007-04-18 10:32:53 · answer #5 · answered by Nelson_DeVon 7 · 0 0

answer is 3.5 (1/2 = .5) always take the first fractional number and divide it by the second fractional number. example is 1/4 divide 1 by 4 = .25

2007-04-18 10:39:57 · answer #6 · answered by mud pie 3 · 0 0

multiply denomenator( in this case 2)by 3 then add numerator which is 1
then put that answer on top of the denomenator(2)=7/2
then divide
3.5

2007-04-18 10:49:35 · answer #7 · answered by ? 3 · 0 0

3.5 learn to use a calculator.

2007-04-18 10:36:51 · answer #8 · answered by Anonymous · 0 1

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