Question

5 UPON 63 - (-6) UPON 21​

Answer 1

Answer:

$\frac{5}{63} - \frac{ - 6}{21} = \frac{23}{63}$

Step-by-step explanation:

$\frac{5}{63} + \frac{6}{21}$

Reduce the fraction with 3,

$\frac{5}{63} + \frac{2}{7}$

Let's, solve by cross multiplying

$\frac{35 + 126}{441}$

$\frac{161}{441}$

Reduce the fraction with 7,

$\frac{23}{63}$

Hope, it will helps you !!

Answer 2

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$\huge{Ｑｕｅｓｔｉｏｎ}$

$\bf \frac{5}{63} - (\frac{ - 6}{21} )$

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$\huge{Ｓｏｌｕｔｉｏｎ}$

$\bf{We \: know \:that \: ,}$

$( - ) \: \times \: ( - ) \: = \: +$

$\bf \frac{5}{63} + \frac{6}{21}$

First we all to take the L.C.M of Denominator is 63 and 21 are ↓

$\begin{array}{r | l}</p><p></p><p>2 & 21 \: , \: 63</p><p>\\</p><p></p><p>3 & 7 \:, \: 21</p><p> \\</p><p></p><p>7 & 7 \: , \: 7</p><p>\\</p><p></p><p> & 1 \:, \:1</p><p> \\</p><p></p><p></p><p></p><p>\end{array}$

$\bf \qquad{L.C.M = 2× 3 × 7} \\ </p><p> \: \: \bf \qquad{= 63}$

$\bf \: = > \frac{1 \times 5 \: + \: 3 \times 6}{63}$

$\bf \: = > \frac{5 \: + \: 18}{63} \:$

$\bf \: = > \frac{23}{63}\:Ａｎｓｗｅｒ$

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