Question

The sum of rational number -8/9 and -4/57 is

Answer 1

$\huge\color{navy}{\mathfrak{ᴀɴsᴡᴇʀ}}$

$\large \sf \red{ \frac{ - 8}{9} + \frac{( - 4)}{57} }$

First take the L.C.M. to make the denominators same.

L.C.M. of 9 and 57=3×3×19=171

$\implies \frac{ - 8}{9} \times \frac{19}{19} = \frac{ - 152}{171} \\ \\ \implies \frac{ - 4}{57} \times \frac{3}{3} = \frac{ - 12}{171} \\ \\ \implies \frac{ - 152 + ( - 12)}{171} = \frac{140}{171}$

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