1.

-2/3 + (1/5+3/4) तथा (-2/3+1/5)+3/4​

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ANSWER:

The\:\:result\:\:of\:\:the\:\:<klux>2</klux>\:\:equations\:\:is\:\:\frac{17}{60}

Step-by-step explanation:

1. -\frac{2}{3}\:+\:\left(\frac{1}{5}\:+\:\frac{3}{4}\right)\:

  -\frac{2}{3}+\left(\frac{1\cdot 4\:+\:5\cdot 3}{5\cdot 4}\right)\\\\-\frac{2}{3}+(\frac{4\:+\:15}{20})\\\\-\frac{2}{3}+\frac{19}{20}\\\\\frac{2\cdot 20\:+\:3\cdot 19}{3\cdot 20}\right\\\\\frac{-40+57}{60}\\\\\frac{17}{60}

2. \left(\frac{-2}{3}\:+\:\frac{1}{5}\right)\:+\frac{3}{4}

   (\frac{-2\cdot 5\:+\:3\cdot 1}{3\cdot 5}) +\frac{3}{4} \\\\(\frac{-10+3}{15}) +\frac{3}{4}\\\\\frac{-7}{15}+\frac{3}{4}\\\\\frac{-7\cdot 4\:+\:15\cdot 3}{15\cdot 4} \\\\\frac{-28+45}{60}\\\\\frac{17}{60}


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