Question

solve a. 2/3+5/7 b. 5/7-7/5​

Answer 1

$\huge{ \pink{\bigstar{\underline{\underline{Answer}}}}}$

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$\implies$A.

$\implies \large{ \red{\bf{ \frac{2}{3} + \frac{5}{7} }}}$

$\implies \large{ \blue{\bf{Solution:—}}}$

$\implies \large{ \green{\sf{Take \: the \: LCM \: of \: 3 \: and \: 7.}}}$

$\implies \large{ \green{\sf{LCM = 21}}}$

$\implies \large{ \green{\sf{ \frac{14 + 15}{21} }}}$

$\implies \large{ \green{\sf{ \frac{14 + 15}{21} = \frac{29}{21} }}}$

$\implies \large{ \green{\sf{ \frac{29}{21} = 1 \frac{8}{21} }}}$

$\implies \large{ \red{\bf{So\: it's \: answer \: is \: \frac{29}{21}. }}}$

$\implies$B.

$\implies \large{ \red{\bf{ \frac{5}{7} - \frac{7}{5} }}}$

$\implies \large{ \blue{\bf{Solution:—}}}$

$\implies \large{ \green{\sf{Take \: LCM \: of \: 7 \: and \: 5.}}}$

$\implies \large{ \green{\sf{LCM = 35}}}$

$\implies \large{ \green{\sf{ \frac{25 - 49}{35} }}}$

$\implies \large{ \green{\sf{ \frac{25 - 49}{35} = \frac{ - 24}{35} }}}$

$\implies \large{ \red{\bf{So \: it's \: answer \: is \: \frac{ - 24}{35} .}}}$

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