Question

Express 21/-63 in standard form.

Answer 1

$<b ><I >Hey here is your answer$

$\bf \it = \frac{21}{ (- 63)} \\ \\ = \frac{1}{ ( - 3)} \\ \\ = \frac{( - 1)}{3}$

hope this helps you

Answer 2

$\: \: \: \: \: \: \: \: \: \: \: \: \frac{Your \: \: Answer}{}$

$= \frac{21}{ - 63} \\ \\ = \frac{21 \times ( - 1)}{ - 63 \times ( - 1)} \\ \\ = \frac{ - 21}{63}$

$The \: \: greatest \: \: commom \: \: divisor \\ of \: \: 21 \: \: \: and \: \: 63 \: \: is \: \: 21.$

$= > \frac{ - 21}{63} = \frac{( - 21) \div 21}{63 \div 21} = \frac{ - 1}{3}$

$Hence, \: \: \: the \: \: standard \: \: form \\ of \: \: \frac{ - 21}{63} \: \: is \: \: \frac{ - 1}{3}$

$I \: \: hope \: \: it \: \: will \: \: help \: \: you$