does anyone knows how to get 12.75 using 1,2,3,4 (no decimals allowed)?

Maria369 said:
does anyone knows how to get 12.75 using 1,2,3,4 (no decimals allowed)?????
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Probably. The real question is, do you? What are your thoughts? What have you tried? For instance, have you converted the decimal form into an improper fraction? Have you puttered about with the numbers?

(By the way, most exercises of this sort are "solved" by puttering about. There is no "formula" or "equation" for this.)

Please reply with a clear listing of your thoughts and efforts so far. When you reply, please include the rest of the rules for this. For instance, is concatenation allowed, so that the "1" and the "2" could be concatenated to create "12"? Are roots allows? Factorials? Exponentiation? And so forth. Thank you! ;)
 
Denis said:
7.4 using 7,2,5 : 7 2/5

If that's not enough of a hint, you're not ready for this.
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Are you assuming that concatenation is allowed? Because often it isn't. :shock:
 
Denis said:
[Whether the use of exponents is allowed] depends on the grade Maria is in...
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Yessiree; without the class context, I find the instructions lacking.

I'd go with your hint, although it might be decimals that are being introduced. At least, I hope schools are still teaching fractions first! :)
 
Hi Stapel. I don't think of mixed numbers as being concatenated.

For example, 7 2/5 means 7+2/5, right? ;)
 
Otis said:
Hi Stapel. I don't think of mixed numbers as being concatenated.

For example, 7 2/5 means 7+2/5, right? ;)
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I agree with you. I hope Maria understood how to do it because your hint was pretty obvious. :)
 
Otis said:
Hi Stapel. I don't think of mixed numbers as being concatenated.

For example, 7 2/5 means 7+2/5, right? ;)
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Yes. But "1, 2, 3, 4" turned into "12 + 3/4" (to be equal to 12.75) would involve concatenation: of the 1 and the 2. ;)
 
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