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Science
/ Make a Fraction from a Rational Decimal
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math
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Can you name the answers to these math questions and learn how to make a fraction from any rational decimal?
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mrhubbell
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Super Easy?
[You have 0.7]
Which place is the 7 in?
So write seven of those as a fraction.
You did it!
Now type 'next.'
[You have 0.72]
Which place is the 2 in?
So write seventy two of those as a fraction.
Now reduce.
You did it!
Now type 'next.'
Easy?
[You have 0.444...]
Which place is the first 4 in?
Subtract a oneths from that place. What do you get?
So write four of those as a fraction.
You did it!
Now type 'next.'
[You have 0.666...]
Which place is the first 6 in?
Subtract a oneths from that place. What do you get?
So write six of those as a fraction.
Now reduce.
You did it!
Now type 'next.'
Medium?
[You have 0.171717...]
Which place is the first 7 in?
Subtract a oneths from that place. What do you get?
So write seventeen of those as a fraction.
You did it!
Now type 'next.'
[You have 0.603603...]
Which place is the first 3 in?
Subtract a oneths from that place. What do you get?
So write six hundred three of those as a fraction.
Now reduce.
You did it!
Now type 'next.'
Hard?
[You have 0.3414141...]
Which place is the first 1 in?
What place is the non-repeating digit in?
What is your first answer minus your second answer?
So write forty-one of those as a fraction.
(...but wait, what place was the non-repeating digit in again?)
So write three of those as a fraction.
(...and now we have to add those two fractions together, so what is their lowest common mulitple?)
By how many times do you have to mulitply 10 to get that?
So what is three times that number?
So what is that number plus forty-one?
So put that number over the answer to the 3rd question.
Now reduce.
You did it!
Now type
'challenge me, already!'
Super Hard!?
[You have 5.73249249249...]
Write this as a fraction.
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