Question

give ans to the question ​

Answer 1

Step-by-step explanation:

refer above..✌️✌️✌️✌️✌️

Answer 2

Answer:

$\frac{99}{100}$

Step-by-step explanation:

$\frac{1}{2} + \frac{1}{5} + \frac{1}{2^{2} } +\frac{1}{5^{2} } \\\\= \frac{1}{2} + \frac{1}{5} + \frac{1}{4 } +\frac{1}{25} \\\\= \frac{1*50}{2*50} + \frac{1*20}{5*20} + \frac{1*25}{4*25 } +\frac{1*4}{25*4} [Since, LCM of 2, 5, 4, 25]\\\\=\frac{50}{100} + \frac{20}{100} + \frac{25}{100 } +\frac{4}{100}\\\\= \frac{50+20+25+4}{100}\\\\=\frac{99}{100}$

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