Math Is Fun Forum

Jane

Member

Registered: 2008-05-09

Posts: 1

Maths Promblem

Hi everyone, 
I really need some help. 
I am trying to slove this maths problem. It is proving really difficult. 
This is it:

Using the numbers       1, 5, 6 and 7         make 21

You are aloud to use      times, divide, plus, subtract    as meny times as you want.

You are not aloud to use the numbers more than ones and you have to use them all.

I am pretty sure that you have to go into fractions.
I just can't quite get it.
Please could you help me! 

Thanks 
from Jane 

JaneFairfax

Member

Registered: 2007-02-23

Posts: 6,868

Re: Maths Promblem

mathsyperson

Moderator

Registered: 2005-06-22

Posts: 4,900

Re: Maths Promblem

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Why did the vector cross the road?
It wanted to be normal.

John E. Franklin

Member

Registered: 2005-08-29

Posts: 3,588

Re: Maths Promblem

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igloo myrtilles fourmis

John E. Franklin

Member

Registered: 2005-08-29

Posts: 3,588

Re: Maths Promblem

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igloo myrtilles fourmis

luca-deltodesco

Member

Registered: 2006-05-05

Posts: 1,470

Re: Maths Promblem

I'm pretty sure you're not meant to change the numbers with a decimal point, so mathsyperson's seems like the only valid answer

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The Beginning Of All Things To End.
The End Of All Things To Come.

Jane

Member

Registered: 2008-05-09

Posts: 1

Re: Maths Promblem

thanks everyone who helped me!
i now understand!!!!!!
Thanks again

Last edited by Jane (2008-05-11 01:03:56)