Question

Write the following rational number in decimal form
$\frac{15}{16}$

Answer 1

According to the problem:

let $=\frac{15}{16}$

$\Rightarrow$ $=\frac{15}{2\times 2\times 2\times 2}$

$=\frac{15}{2^4\times 5^4}$

multiplying $5^4$ by denominator and numerator

$=\frac{15\times 5^4}{2\times 5^4}$

$=\frac{9375}{10000}$

$=0.9375$