Math, asked by supersistersinger, 2 months ago

Find the sum of
 \frac{ - 4}{7} and \:  \frac{1}{ - 2}

Answers

Answered by TheAster
2

\bf{ \huge \:  \underline{ \underline{Question  }}\: : } \\

 \\  \sf \: find \:  \: the \:  \: sum \:  \: of \:  \: \frac{ - 4}{ \:  \:  \: 7}  \:  \: and \:  \: \frac{ \:  \:  \: 1}{ - 2} .\\

\\  \bf{ \huge \:  \underline{ \underline{Answer}}\: : } \\

 \\  \sf \: The \:  \:  negative \:  \:  sign \:  \:  in \:  \:  the \:  \:  denominator  \:  \: of \:  \:  \frac{ \:  \:  \:  \: 1}{ - 2}  \:  \: can \:  \:  be  \:  \:  moved  \:  \: to \: \:   the \:  \:  numerator .

 \\  \sf \frac{ - 4}{ \:  \:  \: 7}  +  \frac{ - 1}{ \:  \:  \: 2}  \\

 \\  \tt \: LCM = 14

 \\  \sf  = \frac{ - 4 \times 2}{ \:  \:  \: 7 \times 2}  +  \frac{ - 1 \times 7}{ \:  \:  \: 2 \times 7}  \\

 \\  \sf  = \frac{ - 8}{ \:  \:  \: 14}  +  \frac{ - 7}{ \:  \:  \: 14}  \\

 \\  \sf  = \frac{ - 8 +(  - 7)}{ \:  \:  \: 14}   \\

 \\  \sf  =  \underline{\underline{\frac{  - 15}{ \:  \:  \: 14} }}  \\

 \\  \\  \bf \: Hope~~this~~helps~~you~!

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