Problem 611

Sir SagarMarch 14, 20150

Subtract $\frac{7}{9}-\left ( -\frac{13}{18} \right )$

Solution:-

We can write it as

$-\frac{7}{9}+\frac{13}{18}$

When we multiply a negative value by a negative sign then it become positive

Now take LCM which is 18

= $\frac{(-7\times 2+13)}{18}$

= $\frac{(-14+13)}{18}$

= $\frac{-1}{18}$

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