Express $\dfrac {7}{26}$ as $\dfrac {1}{a}+\dfrac {1}{b}$
($a,b$ both are positive integers).
BdMO National Junior 2009/7
-
- Posts:1007
- Joined:Sat Dec 09, 2017 1:32 pm
Re: BdMO National Junior 2009/7
By substructing $\dfrac 1n$ from $\dfrac {7}{26}$,where $n\in N$
We will get that,
\[\dfrac {7}{26}-\dfrac 14=\dfrac {1}{52}\]
\[\Rightarrow \dfrac{7}{26}=\dfrac 14+\dfrac {1}{52}\]
We will get that,
\[\dfrac {7}{26}-\dfrac 14=\dfrac {1}{52}\]
\[\Rightarrow \dfrac{7}{26}=\dfrac 14+\dfrac {1}{52}\]