3/4 + (-5/3) +3/15+ (-5/21) – InterviewSolution

1.

3/4 + (-5/3) +3/15+ (-5/21)

Answer»

$\frac{3}{4} + ( - \frac{5}{3} ) + \frac{3}{15} + ( - \frac{5}{21} )$

$\frac{3}{4} - \frac{5}{3} + \frac{3}{15} - \frac{5}{21}$

LCM of DENOMINATORS US 420.

$\frac{315 - 700 + 84 - 100}{420}$

$\frac{ - 410}{420}$

Hence the answer is -410/420.

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