Question

Verify that
$\frac{ - 1}{2} + ( \frac{ - 4}{3}) + \frac{3}{7}$
​

Answer 1

$\huge\mathram{\underline{Answer:}}$

$= \sf\frac{ - 1}{2} + ( \frac{ - 4}{3}) + \frac{3}{7}$

$\sf\red{Take\: L.C.M.\: of\: 2\: , 3\: , 7\:}$

$\huge\fbox\green{L.C.M\: = 42\:}$

$= \sf\frac{ - 1}{2} \times \frac{21}{21} = \frac{ - 21}{4} \\ \\ \\ = \frac{ - 4}{3} \times \frac{14}{14} = \frac{ - 56}{42} \\ \\ \\ = \frac{3}{7} \times \frac{6}{6} = \frac{18}{42}$

$= \sf \frac{ - 21 - 56 + 18}{42}$

$= \sf\frac{ - 59}{42}$