1. 08-21-10 10:48 PM #1
    Suzy2000
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    Math Question ? ? ?

    hi, i was hoping someone could help me. I'd like to know how and or the formula to find out where two numbers will meet. say for example you start with 7 and keep adding 7, and say you also start with 9 and keep adding 9. How do you figure out(using a formula when and where the 2 numbers meet the same total. such as this example would be 56, but i would like to know how to do this using more difficult numbers. also what branch of math would this be? any and all help is appreciated, and thank you for your help. . . .Suzy
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  2. 08-21-10 11:06 PM #2
    makaveli66
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    I don't know.
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  3. 08-21-10 11:06 PM #3
    makaveli66
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    I don't know the answer to the question Suzy2000.
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  4. 08-21-10 11:16 PM #4
    lolguy999
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    Well Suzy, you add 7+9 because everytime u add a 7 u also gotta add a 9. so 7+9=16 right? and 56/16 = howmany times ull need and in this case, FOURRR
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  5. 08-21-10 11:18 PM #5
    lolguy999
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    Say a more complicated... 8 and 9 to form 357. So we add 8 and 9 xxx 8+9=17 Then we do 357/17 by calculator and we get 21!!

    Hope this helps
    p.s. im a college kid in pure science lawl... school's starting tmr..
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  6. 08-22-10 04:15 AM #6
    Dark Horse
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    nm.
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  7. 08-22-10 04:29 AM #7
    MonkeyF0cker
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    Quote Originally Posted by Suzy2000 View Post
    hi, i was hoping someone could help me. I'd like to know how and or the formula to find out where two numbers will meet. say for example you start with 7 and keep adding 7, and say you also start with 9 and keep adding 9. How do you figure out(using a formula when and where the 2 numbers meet the same total. such as this example would be 56, but i would like to know how to do this using more difficult numbers. also what branch of math would this be? any and all help is appreciated, and thank you for your help. . . .Suzy
    What you're trying to do is find the least common multiple. There are several different methods that you can employ to find it, including prime factorization and Euclid's algorithm, both of which are well documented on the web.
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  8. 08-22-10 08:26 AM #8
    wrongturn
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    Quote Originally Posted by Suzy2000 View Post
    hi, i was hoping someone could help me. I'd like to know how and or the formula to find out where two numbers will meet. say for example you start with 7 and keep adding 7, and say you also start with 9 and keep adding 9. How do you figure out(using a formula when and where the 2 numbers meet the same total. such as this example would be 56, but i would like to know how to do this using more difficult numbers. also what branch of math would this be? any and all help is appreciated, and thank you for your help. . . .Suzy
    The least common multiple of the two numbers is the total where they first meet. So for your example the answer is 63.
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  9. 08-22-10 10:51 PM #9
    uva3021
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    in excel

    "=lcm(7,9)"
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  10. 08-25-10 07:44 PM #10
    JVP3122
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    Quote Originally Posted by Suzy2000 View Post
    hi, i was hoping someone could help me. I'd like to know how and or the formula to find out where two numbers will meet. say for example you start with 7 and keep adding 7, and say you also start with 9 and keep adding 9. How do you figure out(using a formula when and where the 2 numbers meet the same total. such as this example would be 56, but i would like to know how to do this using more difficult numbers. also what branch of math would this be? any and all help is appreciated, and thank you for your help. . . .Suzy
    Quote Originally Posted by lolguy999 View Post
    Well Suzy, you add 7+9 because everytime u add a 7 u also gotta add a 9. so 7+9=16 right? and 56/16 = howmany times ull need and in this case, FOURRR
    I'm confused. How many times does nine go into fifty-six? Also, how is 56/16=4?
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  11. 08-25-10 08:00 PM #11
    Shelton
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    i m gonna have to think for a while
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